Finding the Fourth Proportional to 31,040.43, 42,834.47 and 16,893.24

Step by Step Solution

1. Step 1: Write the proportion equation
   31,040.43 : 42,834.47 = 16,893.24 : x
2. Step 2: Convert to fraction form
   31,040.43/42,834.47 = 16,893.24/x
3. Step 3: Cross multiply
   31,040.43x = 42,834.47 × 16,893.24
4. Step 4: Simplify right side
   31,040.43x = 723,612,897.52
5. Step 5: Solve for x
   x = 723,612,897.52/31,040.43
6. Step 6: Final answer
   x = 23,311.95