Assume that there is a Bank where amount deposited is compounded

continuously. A student decides to save $$10$ in $2023,$ $$12$ in $2024$ and $x in $2025$ everyday. The interest rates in the given years are $9\%,8\%$ and $7\mathrm{.}5\%$ respectively.

Given that he invests all the amount he saves everyday into his bank account, and the total value at the beginning of $2023$ is $$12000,$ find x$.$