Finding the Fourth Proportional to 12,700.48, 17,632.24 and 12,320.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,700.48 : 17,632.24 = 12,320.32 : x
2. Step 2: Convert to fraction form
   12,700.48/17,632.24 = 12,320.32/x
3. Step 3: Cross multiply
   12,700.48x = 17,632.24 × 12,320.32
4. Step 4: Simplify right side
   12,700.48x = 217,234,839.12
5. Step 5: Solve for x
   x = 217,234,839.12/12,700.48
6. Step 6: Final answer
   x = 17,104.46