Finding the Fourth Proportional to 12,324.62, 17,013.57 and 7,854.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,324.62 : 17,013.57 = 7,854.50 : x
2. Step 2: Convert to fraction form
   12,324.62/17,013.57 = 7,854.50/x
3. Step 3: Cross multiply
   12,324.62x = 17,013.57 × 7,854.50
4. Step 4: Simplify right side
   12,324.62x = 133,633,085.57
5. Step 5: Solve for x
   x = 133,633,085.57/12,324.62
6. Step 6: Final answer
   x = 10,842.78