Mrs$.$ Singh has just deposited $$6000$ in each of three savings plans for her grandchildren. They will have access to the accumulated funds on their $19$th birthdays. Their current ages are $12$ years, $7$ months $($Raman$)$; $10$ years, $3$ months $($Heman$)$; and $7$ years, $11$ months $($Taaz$).$ If the plans earn $9\mathrm{.}2\%$ compounded monthly, what amount will each grandchild receive at age $19?$