Finding the Fourth Proportional to 57,068, 78,754.12 and 31,917.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,068 : 78,754.12 = 31,917.50 : x
2. Step 2: Convert to fraction form
   57,068/78,754.12 = 31,917.50/x
3. Step 3: Cross multiply
   57,068x = 78,754.12 × 31,917.50
4. Step 4: Simplify right side
   57,068x = 2,513,634,625.10
5. Step 5: Solve for x
   x = 2,513,634,625.10/57,068
6. Step 6: Final answer
   x = 44,046.31