Finding the Fourth Proportional to 12,414.52, 17,130.78 and 7,037.20

Step by Step Solution

1. Step 1: Write the proportion equation
   12,414.52 : 17,130.78 = 7,037.20 : x
2. Step 2: Convert to fraction form
   12,414.52/17,130.78 = 7,037.20/x
3. Step 3: Cross multiply
   12,414.52x = 17,130.78 × 7,037.20
4. Step 4: Simplify right side
   12,414.52x = 120,552,725.02
5. Step 5: Solve for x
   x = 120,552,725.02/12,414.52
6. Step 6: Final answer
   x = 9,710.62