Finding the Fourth Proportional to 57,837,872.72, 79,817,078.72 and 31,731,916.16

Step by Step Solution

1. Step 1: Write the proportion equation
   57,837,872.72 : 79,817,078.72 = 31,731,916.16 : x
2. Step 2: Convert to fraction form
   57,837,872.72/79,817,078.72 = 31,731,916.16/x
3. Step 3: Cross multiply
   57,837,872.72x = 79,817,078.72 × 31,731,916.16
4. Step 4: Simplify right side
   57,837,872.72x = 2,532,748,850,079,160
5. Step 5: Solve for x
   x = 2,532,748,850,079,160/57,837,872.72
6. Step 6: Final answer
   x = 43,790,491.09