Finding the Fourth Proportional to 8,086.82, 12,132.32 and 4,388.09

Step by Step Solution

1. Step 1: Write the proportion equation
   8,086.82 : 12,132.32 = 4,388.09 : x
2. Step 2: Convert to fraction form
   8,086.82/12,132.32 = 4,388.09/x
3. Step 3: Cross multiply
   8,086.82x = 12,132.32 × 4,388.09
4. Step 4: Simplify right side
   8,086.82x = 53,237,629.47
5. Step 5: Solve for x
   x = 53,237,629.47/8,086.82
6. Step 6: Final answer
   x = 6,583.26