Mr. Abasolo invest some of his savings in a corporate bond paying him dividends of P36,194.96 at the end of each year. He religiously set aside all these dividends in a savings account that yields him insignificant interest value. At the end of the fifth year however, he decided to pull out his accumulated funds as a 10% downpayment for a two- storey residential structure (including the lot) and agreed to pay his loan on monthly installments for some years at an interest rate of 15% compounded monthly. If the monthly installment was 242,821.87, how many years did he pay his balance?

Thats all the given.