Finding the Fourth Proportional to 16,229.14, 22,397.16 and 9,942.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,229.14 : 22,397.16 = 9,942.72 : x
2. Step 2: Convert to fraction form
   16,229.14/22,397.16 = 9,942.72/x
3. Step 3: Cross multiply
   16,229.14x = 22,397.16 × 9,942.72
4. Step 4: Simplify right side
   16,229.14x = 222,688,690.68
5. Step 5: Solve for x
   x = 222,688,690.68/16,229.14
6. Step 6: Final answer
   x = 13,721.53