Mango, a super salesman contemplating retirement on his fifty-fifth birthday, decides to create a fund on a 10% basis that will enable him to withdraw $60,000 per year on June 30, beginning in 2014 and continuing through 2017. To develop this fund, Mango intends to make equal contributions on June 30 of each of the years 2010-2013.
1. How much must the balance of the fund equal on June 30, 2013, in order for Mango to satisfy his objective?
2. What are each of Mango's contributions to the fund?