Finding the Fourth Proportional to 8,223.89, 12,326.58 and 4,055.07

Step by Step Solution

1. Step 1: Write the proportion equation
   8,223.89 : 12,326.58 = 4,055.07 : x
2. Step 2: Convert to fraction form
   8,223.89/12,326.58 = 4,055.07/x
3. Step 3: Cross multiply
   8,223.89x = 12,326.58 × 4,055.07
4. Step 4: Simplify right side
   8,223.89x = 49,985,144.76
5. Step 5: Solve for x
   x = 49,985,144.76/8,223.89
6. Step 6: Final answer
   x = 6,078.05