Three years ago Jane borrowed R7 500 from Given. The condition was that she would pay him back in seven years time at an interest rate of 11,21% per year, compounded semi-annually. Six months ago she also borrowed R25 000 from Given at 9,45% per year, compounded monthly. Jane would like to pay off her debt four years from now.

The amount of money that Jane will have to pay Given four years from now is