Finding the Fourth Proportional to 22,752.43, 31,429.02 and 20,630.37

Step by Step Solution

1. Step 1: Write the proportion equation
   22,752.43 : 31,429.02 = 20,630.37 : x
2. Step 2: Convert to fraction form
   22,752.43/31,429.02 = 20,630.37/x
3. Step 3: Cross multiply
   22,752.43x = 31,429.02 × 20,630.37
4. Step 4: Simplify right side
   22,752.43x = 648,392,311.34
5. Step 5: Solve for x
   x = 648,392,311.34/22,752.43
6. Step 6: Final answer
   x = 28,497.72