Finding the Fourth Proportional to 23,016.12, 31,728.42 and 16,280.97

Step by Step Solution

1. Step 1: Write the proportion equation
   23,016.12 : 31,728.42 = 16,280.97 : x
2. Step 2: Convert to fraction form
   23,016.12/31,728.42 = 16,280.97/x
3. Step 3: Cross multiply
   23,016.12x = 31,728.42 × 16,280.97
4. Step 4: Simplify right side
   23,016.12x = 516,569,454.17
5. Step 5: Solve for x
   x = 516,569,454.17/23,016.12
6. Step 6: Final answer
   x = 22,443.81