Finding the Fourth Proportional to 11,105.12, 16,660.56 and 5,558.24

Step by Step Solution

1. Step 1: Write the proportion equation
   11,105.12 : 16,660.56 = 5,558.24 : x
2. Step 2: Convert to fraction form
   11,105.12/16,660.56 = 5,558.24/x
3. Step 3: Cross multiply
   11,105.12x = 16,660.56 × 5,558.24
4. Step 4: Simplify right side
   11,105.12x = 92,603,391.01
5. Step 5: Solve for x
   x = 92,603,391.01/11,105.12
6. Step 6: Final answer
   x = 8,338.80