Client adding one more currency in middle of the year

Hi..........experts,

i have one doubt regarding no of currencies maintain one company.

my company code have 2 currencies. one is local and second one is hard currency. so, in middle of the year my client adding other one new currency.client requirement is prepare total reports from the beganing of fiscal year.because one currency we introduced in middle of the year. Is it possible? if possible how?

thanks in advance

maniankarao