Finding the Fourth Proportional to 56,819.28, 78,414.12 and 31,325.52

Step by Step Solution

1. Step 1: Write the proportion equation
   56,819.28 : 78,414.12 = 31,325.52 : x
2. Step 2: Convert to fraction form
   56,819.28/78,414.12 = 31,325.52/x
3. Step 3: Cross multiply
   56,819.28x = 78,414.12 × 31,325.52
4. Step 4: Simplify right side
   56,819.28x = 2,456,363,084.34
5. Step 5: Solve for x
   x = 2,456,363,084.34/56,819.28
6. Step 6: Final answer
   x = 43,231.15