Finding the Fourth Proportional to 11,081.21, 16,624.55 and 3,290.01

Step by Step Solution

1. Step 1: Write the proportion equation
   11,081.21 : 16,624.55 = 3,290.01 : x
2. Step 2: Convert to fraction form
   11,081.21/16,624.55 = 3,290.01/x
3. Step 3: Cross multiply
   11,081.21x = 16,624.55 × 3,290.01
4. Step 4: Simplify right side
   11,081.21x = 54,694,919.30
5. Step 5: Solve for x
   x = 54,694,919.30/11,081.21
6. Step 6: Final answer
   x = 4,935.83