Finding the Fourth Proportional to 22,939.12, 31,662.72 and 14,982.48

Step by Step Solution

1. Step 1: Write the proportion equation
   22,939.12 : 31,662.72 = 14,982.48 : x
2. Step 2: Convert to fraction form
   22,939.12/31,662.72 = 14,982.48/x
3. Step 3: Cross multiply
   22,939.12x = 31,662.72 × 14,982.48
4. Step 4: Simplify right side
   22,939.12x = 474,386,069.15
5. Step 5: Solve for x
   x = 474,386,069.15/22,939.12
6. Step 6: Final answer
   x = 20,680.22