Finding the Fourth Proportional to 8,216.32, 12,320.32 and 5,753.60

Step by Step Solution

1. Step 1: Write the proportion equation
   8,216.32 : 12,320.32 = 5,753.60 : x
2. Step 2: Convert to fraction form
   8,216.32/12,320.32 = 5,753.60/x
3. Step 3: Cross multiply
   8,216.32x = 12,320.32 × 5,753.60
4. Step 4: Simplify right side
   8,216.32x = 70,886,193.15
5. Step 5: Solve for x
   x = 70,886,193.15/8,216.32
6. Step 6: Final answer
   x = 8,627.49