Finding the Fourth Proportional to 57,061.36, 78,748.32 and 31,911.04

Step by Step Solution

1. Step 1: Write the proportion equation
   57,061.36 : 78,748.32 = 31,911.04 : x
2. Step 2: Convert to fraction form
   57,061.36/78,748.32 = 31,911.04/x
3. Step 3: Cross multiply
   57,061.36x = 78,748.32 × 31,911.04
4. Step 4: Simplify right side
   57,061.36x = 2,512,940,789.45
5. Step 5: Solve for x
   x = 2,512,940,789.45/57,061.36
6. Step 6: Final answer
   x = 44,039.27