For the case shown in the following$$ table, determine the amount of the$$ equal, $$ end$-$of$-$year deposits necessary to accumulate the given sum at the end of the specified$$ period, assuming the stated annual interest rate.

Sum to be accumulated$-$ $$45,500$

Accumulation period $($years$)-18$

Interest rate$-11\%$

The amount of the end$-$of$-$year annual deposit is $