Finding the Fourth Proportional to 56,592.78, 78,097.87 and 31,100.86

Step by Step Solution

1. Step 1: Write the proportion equation
   56,592.78 : 78,097.87 = 31,100.86 : x
2. Step 2: Convert to fraction form
   56,592.78/78,097.87 = 31,100.86/x
3. Step 3: Cross multiply
   56,592.78x = 78,097.87 × 31,100.86
4. Step 4: Simplify right side
   56,592.78x = 2,428,911,057.67
5. Step 5: Solve for x
   x = 2,428,911,057.67/56,592.78
6. Step 6: Final answer
   x = 42,919.10