Finding the Fourth Proportional to 12,443.52, 18,632.16 and 10,475.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,443.52 : 18,632.16 = 10,475.28 : x
2. Step 2: Convert to fraction form
   12,443.52/18,632.16 = 10,475.28/x
3. Step 3: Cross multiply
   12,443.52x = 18,632.16 × 10,475.28
4. Step 4: Simplify right side
   12,443.52x = 195,177,093.00
5. Step 5: Solve for x
   x = 195,177,093.00/12,443.52
6. Step 6: Final answer
   x = 15,685.04