Finding the Fourth Proportional to 11,105.04, 16,658.32 and 3,709.20

Step by Step Solution

1. Step 1: Write the proportion equation
   11,105.04 : 16,658.32 = 3,709.20 : x
2. Step 2: Convert to fraction form
   11,105.04/16,658.32 = 3,709.20/x
3. Step 3: Cross multiply
   11,105.04x = 16,658.32 × 3,709.20
4. Step 4: Simplify right side
   11,105.04x = 61,789,040.54
5. Step 5: Solve for x
   x = 61,789,040.54/11,105.04
6. Step 6: Final answer
   x = 5,564.05