Finding the Fourth Proportional to 31,079.89, 42,890.25 and 16,932.73

Step by Step Solution

1. Step 1: Write the proportion equation
   31,079.89 : 42,890.25 = 16,932.73 : x
2. Step 2: Convert to fraction form
   31,079.89/42,890.25 = 16,932.73/x
3. Step 3: Cross multiply
   31,079.89x = 42,890.25 × 16,932.73
4. Step 4: Simplify right side
   31,079.89x = 726,248,940.52
5. Step 5: Solve for x
   x = 726,248,940.52/31,079.89
6. Step 6: Final answer
   x = 23,367.17