The present value of a debt is $20,000. To pay off the debt that accrues 8% annual interest on the unpaid balance. You will make three payments to pay off the loan- at year 2 your payment will be $5000; at year 3 your payment will be $7000. What will be the final payment amount in year 5?

$13,562 $14,923 $10,640 $15,981