Finding the Fourth Proportional to 11,081.39, 16,622.30 and 3,685.91

Step by Step Solution

1. Step 1: Write the proportion equation
   11,081.39 : 16,622.30 = 3,685.91 : x
2. Step 2: Convert to fraction form
   11,081.39/16,622.30 = 3,685.91/x
3. Step 3: Cross multiply
   11,081.39x = 16,622.30 × 3,685.91
4. Step 4: Simplify right side
   11,081.39x = 61,268,227.90
5. Step 5: Solve for x
   x = 61,268,227.90/11,081.39
6. Step 6: Final answer
   x = 5,528.93