Finding the Fourth Proportional to 31,493.48, 43,452.27 and 21,922.61

Step by Step Solution

1. Step 1: Write the proportion equation
   31,493.48 : 43,452.27 = 21,922.61 : x
2. Step 2: Convert to fraction form
   31,493.48/43,452.27 = 21,922.61/x
3. Step 3: Cross multiply
   31,493.48x = 43,452.27 × 21,922.61
4. Step 4: Simplify right side
   31,493.48x = 952,586,951.56
5. Step 5: Solve for x
   x = 952,586,951.56/31,493.48
6. Step 6: Final answer
   x = 30,247.12