Finding the Fourth Proportional to 17,132.50, 23,642.85 and 9,680.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,132.50 : 23,642.85 = 9,680.50 : x
2. Step 2: Convert to fraction form
   17,132.50/23,642.85 = 9,680.50/x
3. Step 3: Cross multiply
   17,132.50x = 23,642.85 × 9,680.50
4. Step 4: Simplify right side
   17,132.50x = 228,874,609.43
5. Step 5: Solve for x
   x = 228,874,609.43/17,132.50
6. Step 6: Final answer
   x = 13,359.09