Finding the Fourth Proportional to 131,784.05, 181,861.71 and 71,354.75

Step by Step Solution

1. Step 1: Write the proportion equation
   131,784.05 : 181,861.71 = 71,354.75 : x
2. Step 2: Convert to fraction form
   131,784.05/181,861.71 = 71,354.75/x
3. Step 3: Cross multiply
   131,784.05x = 181,861.71 × 71,354.75
4. Step 4: Simplify right side
   131,784.05x = 12,976,695,942.31
5. Step 5: Solve for x
   x = 12,976,695,942.31/131,784.05
6. Step 6: Final answer
   x = 98,469.40