Finding the Fourth Proportional to 8,859.60, 12,223.62 and 5,321.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,859.60 : 12,223.62 = 5,321.52 : x
2. Step 2: Convert to fraction form
   8,859.60/12,223.62 = 5,321.52/x
3. Step 3: Cross multiply
   8,859.60x = 12,223.62 × 5,321.52
4. Step 4: Simplify right side
   8,859.60x = 65,048,238.30
5. Step 5: Solve for x
   x = 65,048,238.30/8,859.60
6. Step 6: Final answer
   x = 7,342.12