Finding the Fourth Proportional to 14,108.16, 21,162.27 and 3,578.18

Step by Step Solution

1. Step 1: Write the proportion equation
   14,108.16 : 21,162.27 = 3,578.18 : x
2. Step 2: Convert to fraction form
   14,108.16/21,162.27 = 3,578.18/x
3. Step 3: Cross multiply
   14,108.16x = 21,162.27 × 3,578.18
4. Step 4: Simplify right side
   14,108.16x = 75,722,411.27
5. Step 5: Solve for x
   x = 75,722,411.27/14,108.16
6. Step 6: Final answer
   x = 5,367.28