Finding the Fourth Proportional to 57,056.96, 78,737.10 and 31,564.38

Step by Step Solution

1. Step 1: Write the proportion equation
   57,056.96 : 78,737.10 = 31,564.38 : x
2. Step 2: Convert to fraction form
   57,056.96/78,737.10 = 31,564.38/x
3. Step 3: Cross multiply
   57,056.96x = 78,737.10 × 31,564.38
4. Step 4: Simplify right side
   57,056.96x = 2,485,287,744.50
5. Step 5: Solve for x
   x = 2,485,287,744.50/57,056.96
6. Step 6: Final answer
   x = 43,558.01