Finding the Fourth Proportional to 11,081.71, 16,622.71 and 3,686.17

Step by Step Solution

1. Step 1: Write the proportion equation
   11,081.71 : 16,622.71 = 3,686.17 : x
2. Step 2: Convert to fraction form
   11,081.71/16,622.71 = 3,686.17/x
3. Step 3: Cross multiply
   11,081.71x = 16,622.71 × 3,686.17
4. Step 4: Simplify right side
   11,081.71x = 61,274,134.92
5. Step 5: Solve for x
   x = 61,274,134.92/11,081.71
6. Step 6: Final answer
   x = 5,529.30