Finding the Fourth Proportional to 14,111.39, 21,169.52 and 4,249.85

Step by Step Solution

1. Step 1: Write the proportion equation
   14,111.39 : 21,169.52 = 4,249.85 : x
2. Step 2: Convert to fraction form
   14,111.39/21,169.52 = 4,249.85/x
3. Step 3: Cross multiply
   14,111.39x = 21,169.52 × 4,249.85
4. Step 4: Simplify right side
   14,111.39x = 89,967,173.41
5. Step 5: Solve for x
   x = 89,967,173.41/14,111.39
6. Step 6: Final answer
   x = 6,375.50