Finding the Fourth Proportional to 16,042.71, 22,139.28 and 8,968.98

Step by Step Solution

1. Step 1: Write the proportion equation
   16,042.71 : 22,139.28 = 8,968.98 : x
2. Step 2: Convert to fraction form
   16,042.71/22,139.28 = 8,968.98/x
3. Step 3: Cross multiply
   16,042.71x = 22,139.28 × 8,968.98
4. Step 4: Simplify right side
   16,042.71x = 198,566,759.53
5. Step 5: Solve for x
   x = 198,566,759.53/16,042.71
6. Step 6: Final answer
   x = 12,377.38