Finding the Fourth Proportional to 11,081.65, 16,618.89 and 3,684.13

Step by Step Solution

1. Step 1: Write the proportion equation
   11,081.65 : 16,618.89 = 3,684.13 : x
2. Step 2: Convert to fraction form
   11,081.65/16,618.89 = 3,684.13/x
3. Step 3: Cross multiply
   11,081.65x = 16,618.89 × 3,684.13
4. Step 4: Simplify right side
   11,081.65x = 61,226,151.22
5. Step 5: Solve for x
   x = 61,226,151.22/11,081.65
6. Step 6: Final answer
   x = 5,525.00