Finding the Fourth Proportional to 31,083.98, 42,895.92 and 16,936.86

Step by Step Solution

1. Step 1: Write the proportion equation
   31,083.98 : 42,895.92 = 16,936.86 : x
2. Step 2: Convert to fraction form
   31,083.98/42,895.92 = 16,936.86/x
3. Step 3: Cross multiply
   31,083.98x = 42,895.92 × 16,936.86
4. Step 4: Simplify right side
   31,083.98x = 726,522,191.61
5. Step 5: Solve for x
   x = 726,522,191.61/31,083.98
6. Step 6: Final answer
   x = 23,372.88