Finding the Fourth Proportional to 11,081.10, 16,615.98 and 3,288.90

Step by Step Solution

1. Step 1: Write the proportion equation
   11,081.10 : 16,615.98 = 3,288.90 : x
2. Step 2: Convert to fraction form
   11,081.10/16,615.98 = 3,288.90/x
3. Step 3: Cross multiply
   11,081.10x = 16,615.98 × 3,288.90
4. Step 4: Simplify right side
   11,081.10x = 54,648,296.62
5. Step 5: Solve for x
   x = 54,648,296.62/11,081.10
6. Step 6: Final answer
   x = 4,931.67