Finding the Fourth Proportional to 31,321.43, 43,222.66 and 17,892.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,321.43 : 43,222.66 = 17,892.42 : x
2. Step 2: Convert to fraction form
   31,321.43/43,222.66 = 17,892.42/x
3. Step 3: Cross multiply
   31,321.43x = 43,222.66 × 17,892.42
4. Step 4: Simplify right side
   31,321.43x = 773,357,986.24
5. Step 5: Solve for x
   x = 773,357,986.24/31,321.43
6. Step 6: Final answer
   x = 24,691.02