Finding the Fourth Proportional to 131,833.48, 181,929.10 and 71,402.72

Step by Step Solution

1. Step 1: Write the proportion equation
   131,833.48 : 181,929.10 = 71,402.72 : x
2. Step 2: Convert to fraction form
   131,833.48/181,929.10 = 71,402.72/x
3. Step 3: Cross multiply
   131,833.48x = 181,929.10 × 71,402.72
4. Step 4: Simplify right side
   131,833.48x = 12,990,232,587.15
5. Step 5: Solve for x
   x = 12,990,232,587.15/131,833.48
6. Step 6: Final answer
   x = 98,535.16