Finding the Fourth Proportional to 11,118.72, 16,691.22 and 4,550.16

Step by Step Solution

1. Step 1: Write the proportion equation
   11,118.72 : 16,691.22 = 4,550.16 : x
2. Step 2: Convert to fraction form
   11,118.72/16,691.22 = 4,550.16/x
3. Step 3: Cross multiply
   11,118.72x = 16,691.22 × 4,550.16
4. Step 4: Simplify right side
   11,118.72x = 75,947,721.60
5. Step 5: Solve for x
   x = 75,947,721.60/11,118.72
6. Step 6: Final answer
   x = 6,830.62