Finding the Fourth Proportional to 57,062.72, 78,744.32 and 31,917.04

Step by Step Solution

1. Step 1: Write the proportion equation
   57,062.72 : 78,744.32 = 31,917.04 : x
2. Step 2: Convert to fraction form
   57,062.72/78,744.32 = 31,917.04/x
3. Step 3: Cross multiply
   57,062.72x = 78,744.32 × 31,917.04
4. Step 4: Simplify right side
   57,062.72x = 2,513,285,611.21
5. Step 5: Solve for x
   x = 2,513,285,611.21/57,062.72
6. Step 6: Final answer
   x = 44,044.27