Finding the Fourth Proportional to 8,868.36, 12,238.02 and 5,727.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,868.36 : 12,238.02 = 5,727.72 : x
2. Step 2: Convert to fraction form
   8,868.36/12,238.02 = 5,727.72/x
3. Step 3: Cross multiply
   8,868.36x = 12,238.02 × 5,727.72
4. Step 4: Simplify right side
   8,868.36x = 70,095,951.91
5. Step 5: Solve for x
   x = 70,095,951.91/8,868.36
6. Step 6: Final answer
   x = 7,904.05