Finding the Fourth Proportional to 12,494.43, 17,234.38 and 9,503.71

Step by Step Solution

1. Step 1: Write the proportion equation
   12,494.43 : 17,234.38 = 9,503.71 : x
2. Step 2: Convert to fraction form
   12,494.43/17,234.38 = 9,503.71/x
3. Step 3: Cross multiply
   12,494.43x = 17,234.38 × 9,503.71
4. Step 4: Simplify right side
   12,494.43x = 163,790,549.55
5. Step 5: Solve for x
   x = 163,790,549.55/12,494.43
6. Step 6: Final answer
   x = 13,109.09