Suppose an annuity pays 6% annual interest, compounded semi-annually. You invest in this annuity by contributing $4,500 semiannually for 6 years. What will the annuity be worth after 6 years? Assume that the annuity is compounded with the same frequency as deposits are made unless stated otherwise. Enter your answer rounded to the nearest hundred dollars and omit the dollar sign and comma (For example, $42,570.21 should be entered as 42600.)