Finding the Fourth Proportional to 57,141.38, 78,863.37 and 31,992.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,141.38 : 78,863.37 = 31,992.50 : x
2. Step 2: Convert to fraction form
   57,141.38/78,863.37 = 31,992.50/x
3. Step 3: Cross multiply
   57,141.38x = 78,863.37 × 31,992.50
4. Step 4: Simplify right side
   57,141.38x = 2,523,036,364.73
5. Step 5: Solve for x
   x = 2,523,036,364.73/57,141.38
6. Step 6: Final answer
   x = 44,154.28