Finding the Fourth Proportional to 8,796.88, 12,131.94 and 5,439.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,796.88 : 12,131.94 = 5,439.16 : x
2. Step 2: Convert to fraction form
   8,796.88/12,131.94 = 5,439.16/x
3. Step 3: Cross multiply
   8,796.88x = 12,131.94 × 5,439.16
4. Step 4: Simplify right side
   8,796.88x = 65,987,562.77
5. Step 5: Solve for x
   x = 65,987,562.77/8,796.88
6. Step 6: Final answer
   x = 7,501.25