Finding the Fourth Proportional to 12,394.64, 17,107.24 and 7,429.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,394.64 : 17,107.24 = 7,429.52 : x
2. Step 2: Convert to fraction form
   12,394.64/17,107.24 = 7,429.52/x
3. Step 3: Cross multiply
   12,394.64x = 17,107.24 × 7,429.52
4. Step 4: Simplify right side
   12,394.64x = 127,098,581.72
5. Step 5: Solve for x
   x = 127,098,581.72/12,394.64
6. Step 6: Final answer
   x = 10,254.32