Finding the Fourth Proportional to 8,268.32, 12,399.83 and 2,720.37

Step by Step Solution

1. Step 1: Write the proportion equation
   8,268.32 : 12,399.83 = 2,720.37 : x
2. Step 2: Convert to fraction form
   8,268.32/12,399.83 = 2,720.37/x
3. Step 3: Cross multiply
   8,268.32x = 12,399.83 × 2,720.37
4. Step 4: Simplify right side
   8,268.32x = 33,732,111.94
5. Step 5: Solve for x
   x = 33,732,111.94/8,268.32
6. Step 6: Final answer
   x = 4,079.68