Finding the Fourth Proportional to 11,002.72, 16,505.08 and 3,105.33

Step by Step Solution

1. Step 1: Write the proportion equation
   11,002.72 : 16,505.08 = 3,105.33 : x
2. Step 2: Convert to fraction form
   11,002.72/16,505.08 = 3,105.33/x
3. Step 3: Cross multiply
   11,002.72x = 16,505.08 × 3,105.33
4. Step 4: Simplify right side
   11,002.72x = 51,253,660.14
5. Step 5: Solve for x
   x = 51,253,660.14/11,002.72
6. Step 6: Final answer
   x = 4,658.27