Finding the Fourth Proportional to 12,834.57, 17,711.17 and 7,169.29

Step by Step Solution

1. Step 1: Write the proportion equation
   12,834.57 : 17,711.17 = 7,169.29 : x
2. Step 2: Convert to fraction form
   12,834.57/17,711.17 = 7,169.29/x
3. Step 3: Cross multiply
   12,834.57x = 17,711.17 × 7,169.29
4. Step 4: Simplify right side
   12,834.57x = 126,976,389.57
5. Step 5: Solve for x
   x = 126,976,389.57/12,834.57
6. Step 6: Final answer
   x = 9,893.31