Finding the Fourth Proportional to 56,158.52, 77,498.37 and 31,008.02

Step by Step Solution

1. Step 1: Write the proportion equation
   56,158.52 : 77,498.37 = 31,008.02 : x
2. Step 2: Convert to fraction form
   56,158.52/77,498.37 = 31,008.02/x
3. Step 3: Cross multiply
   56,158.52x = 77,498.37 × 31,008.02
4. Step 4: Simplify right side
   56,158.52x = 2,403,070,619.44
5. Step 5: Solve for x
   x = 2,403,070,619.44/56,158.52
6. Step 6: Final answer
   x = 42,790.85