Finding the Fourth Proportional to 14,395.89, 19,866.15 and 8,108.28

Step by Step Solution

1. Step 1: Write the proportion equation
   14,395.89 : 19,866.15 = 8,108.28 : x
2. Step 2: Convert to fraction form
   14,395.89/19,866.15 = 8,108.28/x
3. Step 3: Cross multiply
   14,395.89x = 19,866.15 × 8,108.28
4. Step 4: Simplify right side
   14,395.89x = 161,080,306.72
5. Step 5: Solve for x
   x = 161,080,306.72/14,395.89
6. Step 6: Final answer
   x = 11,189.33