Finding the Fourth Proportional to 31,648.72, 43,689.72 and 22,581.04

Step by Step Solution

1. Step 1: Write the proportion equation
   31,648.72 : 43,689.72 = 22,581.04 : x
2. Step 2: Convert to fraction form
   31,648.72/43,689.72 = 22,581.04/x
3. Step 3: Cross multiply
   31,648.72x = 43,689.72 × 22,581.04
4. Step 4: Simplify right side
   31,648.72x = 986,559,314.91
5. Step 5: Solve for x
   x = 986,559,314.91/31,648.72
6. Step 6: Final answer
   x = 31,172.17