Finding the Fourth Proportional to 11,088.99, 16,626.57 and 3,691.55

Step by Step Solution

1. Step 1: Write the proportion equation
   11,088.99 : 16,626.57 = 3,691.55 : x
2. Step 2: Convert to fraction form
   11,088.99/16,626.57 = 3,691.55/x
3. Step 3: Cross multiply
   11,088.99x = 16,626.57 × 3,691.55
4. Step 4: Simplify right side
   11,088.99x = 61,377,796.03
5. Step 5: Solve for x
   x = 61,377,796.03/11,088.99
6. Step 6: Final answer
   x = 5,535.02