Finding the Fourth Proportional to 8,361.04, 12,467.87 and 8,286.09

Step by Step Solution

1. Step 1: Write the proportion equation
   8,361.04 : 12,467.87 = 8,286.09 : x
2. Step 2: Convert to fraction form
   8,361.04/12,467.87 = 8,286.09/x
3. Step 3: Cross multiply
   8,361.04x = 12,467.87 × 8,286.09
4. Step 4: Simplify right side
   8,361.04x = 103,309,851.50
5. Step 5: Solve for x
   x = 103,309,851.50/8,361.04
6. Step 6: Final answer
   x = 12,356.10