Finding the Fourth Proportional to 11,080.48, 16,618.56 and 4,153.60

Step by Step Solution

1. Step 1: Write the proportion equation
   11,080.48 : 16,618.56 = 4,153.60 : x
2. Step 2: Convert to fraction form
   11,080.48/16,618.56 = 4,153.60/x
3. Step 3: Cross multiply
   11,080.48x = 16,618.56 × 4,153.60
4. Step 4: Simplify right side
   11,080.48x = 69,026,850.82
5. Step 5: Solve for x
   x = 69,026,850.82/11,080.48
6. Step 6: Final answer
   x = 6,229.59