Finding the Fourth Proportional to 23,664, 32,658.24 and 13,728

Step by Step Solution

1. Step 1: Write the proportion equation
   23,664 : 32,658.24 = 13,728 : x
2. Step 2: Convert to fraction form
   23,664/32,658.24 = 13,728/x
3. Step 3: Cross multiply
   23,664x = 32,658.24 × 13,728
4. Step 4: Simplify right side
   23,664x = 448,332,318.72
5. Step 5: Solve for x
   x = 448,332,318.72/23,664
6. Step 6: Final answer
   x = 18,945.75