Finding the Fourth Proportional to 11,081.71, 16,623.47 and 3,290.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,081.71 : 16,623.47 = 3,290.50 : x
2. Step 2: Convert to fraction form
   11,081.71/16,623.47 = 3,290.50/x
3. Step 3: Cross multiply
   11,081.71x = 16,623.47 × 3,290.50
4. Step 4: Simplify right side
   11,081.71x = 54,699,528.04
5. Step 5: Solve for x
   x = 54,699,528.04/11,081.71
6. Step 6: Final answer
   x = 4,936.02