Finding the Fourth Proportional to 131,629.74, 181,648.51 and 71,200.30

Step by Step Solution

1. Step 1: Write the proportion equation
   131,629.74 : 181,648.51 = 71,200.30 : x
2. Step 2: Convert to fraction form
   131,629.74/181,648.51 = 71,200.30/x
3. Step 3: Cross multiply
   131,629.74x = 181,648.51 × 71,200.30
4. Step 4: Simplify right side
   131,629.74x = 12,933,428,406.55
5. Step 5: Solve for x
   x = 12,933,428,406.55/131,629.74
6. Step 6: Final answer
   x = 98,256.13