Finding the Fourth Proportional to 11,081.49, 16,621.83 and 3,290.10

Step by Step Solution

1. Step 1: Write the proportion equation
   11,081.49 : 16,621.83 = 3,290.10 : x
2. Step 2: Convert to fraction form
   11,081.49/16,621.83 = 3,290.10/x
3. Step 3: Cross multiply
   11,081.49x = 16,621.83 × 3,290.10
4. Step 4: Simplify right side
   11,081.49x = 54,687,482.88
5. Step 5: Solve for x
   x = 54,687,482.88/11,081.49
6. Step 6: Final answer
   x = 4,935.03