Finding the Fourth Proportional to 31,081.89, 42,893.01 and 16,934.73

Step by Step Solution

1. Step 1: Write the proportion equation
   31,081.89 : 42,893.01 = 16,934.73 : x
2. Step 2: Convert to fraction form
   31,081.89/42,893.01 = 16,934.73/x
3. Step 3: Cross multiply
   31,081.89x = 42,893.01 × 16,934.73
4. Step 4: Simplify right side
   31,081.89x = 726,381,543.24
5. Step 5: Solve for x
   x = 726,381,543.24/31,081.89
6. Step 6: Final answer
   x = 23,369.93