Finding the Fourth Proportional to 16,224.78, 24,339.56 and 5,128.95

Step by Step Solution

1. Step 1: Write the proportion equation
   16,224.78 : 24,339.56 = 5,128.95 : x
2. Step 2: Convert to fraction form
   16,224.78/24,339.56 = 5,128.95/x
3. Step 3: Cross multiply
   16,224.78x = 24,339.56 × 5,128.95
4. Step 4: Simplify right side
   16,224.78x = 124,836,360.62
5. Step 5: Solve for x
   x = 124,836,360.62/16,224.78
6. Step 6: Final answer
   x = 7,694.18