Hearts have warned there could be 'further battles ahead' when it comes to timely payment of bills unless targets with the share issue scheme are met.
Recent announcement
The most recent announcement last week indicated more than £600,000 had been raised by the scheme, but that is only a third of the target and Fedotovas - right-hand man to majority shareholder Vladimir Romanov - has repeatedly called for additional support.
The Edinburgh club, whose defence of the William Hill Scottish Cup ended with a fourth-round loss at city rivals Hibernian on Sunday, face a £2m shortfall in revenue this season.
Prior to last month's match with St Mirren, Fedotovas had warned it could be Hearts' last in the club's 138-year history.
Fans showed their support and Hearts hope the agreement in the tax cases has allayed immediate fears and will prompt hesitant parties to support the club.
"We would urge those supporters, and particularly those in the corporate sector, to act now if they have not done so already," Fedotovas added.
"Much work lies ahead and the window of opportunity for supporters to play their part is closing quickly.
"The resolution of this dispute gives us a positive nod to expect that those supporters who were wary of the immediate effect on the club of the tax case can now step forward in confidence.
"We are keeping our promise to keep this club alive and we have the results - the petition was agreed and paid, the tax case is resolved.
"It is good to know that we are not alone in our ambitions but we need more involvement as we are in far from good shape and the recent Scottish Cup result is the best evidence of this.
"Now, more than ever before, is the time for our fans everywhere to stand up and be counted."
