Finding the Fourth Proportional to 8,754.36, 12,081.32 and 5,399.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,754.36 : 12,081.32 = 5,399.16 : x
2. Step 2: Convert to fraction form
   8,754.36/12,081.32 = 5,399.16/x
3. Step 3: Cross multiply
   8,754.36x = 12,081.32 × 5,399.16
4. Step 4: Simplify right side
   8,754.36x = 65,228,979.69
5. Step 5: Solve for x
   x = 65,228,979.69/8,754.36
6. Step 6: Final answer
   x = 7,451.03