Finding the Fourth Proportional to 21,912.72, 30,233.43 and 14,752.73

Step by Step Solution

1. Step 1: Write the proportion equation
   21,912.72 : 30,233.43 = 14,752.73 : x
2. Step 2: Convert to fraction form
   21,912.72/30,233.43 = 14,752.73/x
3. Step 3: Cross multiply
   21,912.72x = 30,233.43 × 14,752.73
4. Step 4: Simplify right side
   21,912.72x = 446,025,478.60
5. Step 5: Solve for x
   x = 446,025,478.60/21,912.72
6. Step 6: Final answer
   x = 20,354.64