Finding the Fourth Proportional to 31,081.44, 42,892.59 and 16,934.28

Step by Step Solution

1. Step 1: Write the proportion equation
   31,081.44 : 42,892.59 = 16,934.28 : x
2. Step 2: Convert to fraction form
   31,081.44/42,892.59 = 16,934.28/x
3. Step 3: Cross multiply
   31,081.44x = 42,892.59 × 16,934.28
4. Step 4: Simplify right side
   31,081.44x = 726,355,177.66
5. Step 5: Solve for x
   x = 726,355,177.66/31,081.44
6. Step 6: Final answer
   x = 23,369.42