Finding the Fourth Proportional to 8,863.80, 12,231.72 and 5,327.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,863.80 : 12,231.72 = 5,327.34 : x
2. Step 2: Convert to fraction form
   8,863.80/12,231.72 = 5,327.34/x
3. Step 3: Cross multiply
   8,863.80x = 12,231.72 × 5,327.34
4. Step 4: Simplify right side
   8,863.80x = 65,162,531.22
5. Step 5: Solve for x
   x = 65,162,531.22/8,863.80
6. Step 6: Final answer
   x = 7,351.53