Finding the Fourth Proportional to 11,105.61, 16,659.17 and 3,506.24

Step by Step Solution

1. Step 1: Write the proportion equation
   11,105.61 : 16,659.17 = 3,506.24 : x
2. Step 2: Convert to fraction form
   11,105.61/16,659.17 = 3,506.24/x
3. Step 3: Cross multiply
   11,105.61x = 16,659.17 × 3,506.24
4. Step 4: Simplify right side
   11,105.61x = 58,410,991.78
5. Step 5: Solve for x
   x = 58,410,991.78/11,105.61
6. Step 6: Final answer
   x = 5,259.60