Finding the Fourth Proportional to 131,114.50, 180,938.02 and 71,498.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,114.50 : 180,938.02 = 71,498.50 : x
2. Step 2: Convert to fraction form
   131,114.50/180,938.02 = 71,498.50/x
3. Step 3: Cross multiply
   131,114.50x = 180,938.02 × 71,498.50
4. Step 4: Simplify right side
   131,114.50x = 12,936,797,022.97
5. Step 5: Solve for x
   x = 12,936,797,022.97/131,114.50
6. Step 6: Final answer
   x = 98,667.94