Finding the Fourth Proportional to 131,581.34, 181,582.11 and 71,151.83

Step by Step Solution

1. Step 1: Write the proportion equation
   131,581.34 : 181,582.11 = 71,151.83 : x
2. Step 2: Convert to fraction form
   131,581.34/181,582.11 = 71,151.83/x
3. Step 3: Cross multiply
   131,581.34x = 181,582.11 × 71,151.83
4. Step 4: Simplify right side
   131,581.34x = 12,919,899,421.76
5. Step 5: Solve for x
   x = 12,919,899,421.76/131,581.34
6. Step 6: Final answer
   x = 98,189.45