Finding the Fourth Proportional to 10,879.78, 16,282.59 and 7,549.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,879.78 : 16,282.59 = 7,549.15 : x
2. Step 2: Convert to fraction form
   10,879.78/16,282.59 = 7,549.15/x
3. Step 3: Cross multiply
   10,879.78x = 16,282.59 × 7,549.15
4. Step 4: Simplify right side
   10,879.78x = 122,919,714.30
5. Step 5: Solve for x
   x = 122,919,714.30/10,879.78
6. Step 6: Final answer
   x = 11,298.00