Finding the Fourth Proportional to 8,086.05, 12,109.61 and 5,481.09

Step by Step Solution

1. Step 1: Write the proportion equation
   8,086.05 : 12,109.61 = 5,481.09 : x
2. Step 2: Convert to fraction form
   8,086.05/12,109.61 = 5,481.09/x
3. Step 3: Cross multiply
   8,086.05x = 12,109.61 × 5,481.09
4. Step 4: Simplify right side
   8,086.05x = 66,373,834.87
5. Step 5: Solve for x
   x = 66,373,834.87/8,086.05
6. Step 6: Final answer
   x = 8,208.44