Finding the Fourth Proportional to 131,500.61, 181,461.72 and 74,141.97

Step by Step Solution

1. Step 1: Write the proportion equation
   131,500.61 : 181,461.72 = 74,141.97 : x
2. Step 2: Convert to fraction form
   131,500.61/181,461.72 = 74,141.97/x
3. Step 3: Cross multiply
   131,500.61x = 181,461.72 × 74,141.97
4. Step 4: Simplify right side
   131,500.61x = 13,453,929,400.39
5. Step 5: Solve for x
   x = 13,453,929,400.39/131,500.61
6. Step 6: Final answer
   x = 102,310.78