You would like to have $88,000 in your account 10 years from now to buy a brand new BMW. To that effect, you would like to make three separate deposits in your saving account that pays 8% annual interest rate, which compounds monthly. If you make the first deposit of $15,000 now (for 10 years) and a $10,000 deposit 5-years from now , what would be the third deposit you need to make 7 years from now so that you can have that $88,000 to buy that car. All investments are single deposit investments.