Finding the Fourth Proportional to 8,081.49, 12,115.69 and 3,635.89

Step by Step Solution

1. Step 1: Write the proportion equation
   8,081.49 : 12,115.69 = 3,635.89 : x
2. Step 2: Convert to fraction form
   8,081.49/12,115.69 = 3,635.89/x
3. Step 3: Cross multiply
   8,081.49x = 12,115.69 × 3,635.89
4. Step 4: Simplify right side
   8,081.49x = 44,051,316.11
5. Step 5: Solve for x
   x = 44,051,316.11/8,081.49
6. Step 6: Final answer
   x = 5,450.89