Finding the Fourth Proportional to 17,962.28, 24,762.24 and 12,640.56

Step by Step Solution

1. Step 1: Write the proportion equation
   17,962.28 : 24,762.24 = 12,640.56 : x
2. Step 2: Convert to fraction form
   17,962.28/24,762.24 = 12,640.56/x
3. Step 3: Cross multiply
   17,962.28x = 24,762.24 × 12,640.56
4. Step 4: Simplify right side
   17,962.28x = 313,008,580.45
5. Step 5: Solve for x
   x = 313,008,580.45/17,962.28
6. Step 6: Final answer
   x = 17,425.88