Finding the Fourth Proportional to 16,671.52, 25,008.62 and 5,578.28

Step by Step Solution

1. Step 1: Write the proportion equation
   16,671.52 : 25,008.62 = 5,578.28 : x
2. Step 2: Convert to fraction form
   16,671.52/25,008.62 = 5,578.28/x
3. Step 3: Cross multiply
   16,671.52x = 25,008.62 × 5,578.28
4. Step 4: Simplify right side
   16,671.52x = 139,505,084.77
5. Step 5: Solve for x
   x = 139,505,084.77/16,671.52
6. Step 6: Final answer
   x = 8,367.87