Finding the Fourth Proportional to 16,111.78, 22,234.28 and 8,941.47

Step by Step Solution

1. Step 1: Write the proportion equation
   16,111.78 : 22,234.28 = 8,941.47 : x
2. Step 2: Convert to fraction form
   16,111.78/22,234.28 = 8,941.47/x
3. Step 3: Cross multiply
   16,111.78x = 22,234.28 × 8,941.47
4. Step 4: Simplify right side
   16,111.78x = 198,807,147.59
5. Step 5: Solve for x
   x = 198,807,147.59/16,111.78
6. Step 6: Final answer
   x = 12,339.24