Finding the Fourth Proportional to 9,721,791.72, 13,416,343.47 and 5,371,158.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,721,791.72 : 13,416,343.47 = 5,371,158.60 : x
2. Step 2: Convert to fraction form
   9,721,791.72/13,416,343.47 = 5,371,158.60/x
3. Step 3: Cross multiply
   9,721,791.72x = 13,416,343.47 × 5,371,158.60
4. Step 4: Simplify right side
   9,721,791.72x = 72,061,308,609,444.34
5. Step 5: Solve for x
   x = 72,061,308,609,444.34/9,721,791.72
6. Step 6: Final answer
   x = 7,412,348.53