Finding the Fourth Proportional to 22,738.56, 31,367.20 and 15,652.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,738.56 : 31,367.20 = 15,652.72 : x
2. Step 2: Convert to fraction form
   22,738.56/31,367.20 = 15,652.72/x
3. Step 3: Cross multiply
   22,738.56x = 31,367.20 × 15,652.72
4. Step 4: Simplify right side
   22,738.56x = 490,981,998.78
5. Step 5: Solve for x
   x = 490,981,998.78/22,738.56
6. Step 6: Final answer
   x = 21,592.48