Finding the Fourth Proportional to 8,868.15, 12,239.51 and 5,333.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,868.15 : 12,239.51 = 5,333.31 : x
2. Step 2: Convert to fraction form
   8,868.15/12,239.51 = 5,333.31/x
3. Step 3: Cross multiply
   8,868.15x = 12,239.51 × 5,333.31
4. Step 4: Simplify right side
   8,868.15x = 65,277,074.41
5. Step 5: Solve for x
   x = 65,277,074.41/8,868.15
6. Step 6: Final answer
   x = 7,360.84