Finding the Fourth Proportional to 131,491.50, 181,458.27 and 71,875.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,491.50 : 181,458.27 = 71,875.50 : x
2. Step 2: Convert to fraction form
   131,491.50/181,458.27 = 71,875.50/x
3. Step 3: Cross multiply
   131,491.50x = 181,458.27 × 71,875.50
4. Step 4: Simplify right side
   131,491.50x = 13,042,403,885.39
5. Step 5: Solve for x
   x = 13,042,403,885.39/131,491.50
6. Step 6: Final answer
   x = 99,188.19