Finding the Fourth Proportional to 12,490.57, 17,234.17 and 7,453.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,490.57 : 17,234.17 = 7,453.82 : x
2. Step 2: Convert to fraction form
   12,490.57/17,234.17 = 7,453.82/x
3. Step 3: Cross multiply
   12,490.57x = 17,234.17 × 7,453.82
4. Step 4: Simplify right side
   12,490.57x = 128,460,425.48
5. Step 5: Solve for x
   x = 128,460,425.48/12,490.57
6. Step 6: Final answer
   x = 10,284.59