Finding the Fourth Proportional to 12,440.62, 17,167.53 and 7,131.73

Step by Step Solution

1. Step 1: Write the proportion equation
   12,440.62 : 17,167.53 = 7,131.73 : x
2. Step 2: Convert to fraction form
   12,440.62/17,167.53 = 7,131.73/x
3. Step 3: Cross multiply
   12,440.62x = 17,167.53 × 7,131.73
4. Step 4: Simplify right side
   12,440.62x = 122,434,188.73
5. Step 5: Solve for x
   x = 122,434,188.73/12,440.62
6. Step 6: Final answer
   x = 9,841.49