Finding the Fourth Proportional to 8,222.88, 12,323.94 and 5,260.20

Step by Step Solution

1. Step 1: Write the proportion equation
   8,222.88 : 12,323.94 = 5,260.20 : x
2. Step 2: Convert to fraction form
   8,222.88/12,323.94 = 5,260.20/x
3. Step 3: Cross multiply
   8,222.88x = 12,323.94 × 5,260.20
4. Step 4: Simplify right side
   8,222.88x = 64,826,389.19
5. Step 5: Solve for x
   x = 64,826,389.19/8,222.88
6. Step 6: Final answer
   x = 7,883.66