Adani Group plans to launch two new mines in Australia. Adani Group has estimated the costs of drilling and establishing the mines at $12.7 billion Australian Dollars, 6 years from now. The company plans to establish a fund in an Australian bank. The fund is expected to earn a return of 18% per year (a rate relative to the Australian Dollar - AUD). How much will the company have to set aside now in U.S. dollars if it is estimated that U.S. dollars will be devalued at an average of 4.25% per year and the present exchange rate is 1.57 AUD per U.S. dollar?