Finding the Fourth Proportional to 31,091.46, 42,904.98 and 16,944

Step by Step Solution

1. Step 1: Write the proportion equation
   31,091.46 : 42,904.98 = 16,944 : x
2. Step 2: Convert to fraction form
   31,091.46/42,904.98 = 16,944/x
3. Step 3: Cross multiply
   31,091.46x = 42,904.98 × 16,944
4. Step 4: Simplify right side
   31,091.46x = 726,981,981.12
5. Step 5: Solve for x
   x = 726,981,981.12/31,091.46
6. Step 6: Final answer
   x = 23,382.05