How much did you invest each month at 6.10% compounded monthly if 10 years later the investment is worth $57,670.12?
let the payment be p
i = .061/12 = .0050833
n = 120
p( 1.00508333^120 - 1)/.0050833
solve for p
i = .061/12 = .0050833
n = 120
p( 1.00508333^120 - 1)/.0050833
solve for p