Finding the Fourth Proportional to 8,119.22, 12,157.07 and 5,648.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,119.22 : 12,157.07 = 5,648.82 : x
2. Step 2: Convert to fraction form
   8,119.22/12,157.07 = 5,648.82/x
3. Step 3: Cross multiply
   8,119.22x = 12,157.07 × 5,648.82
4. Step 4: Simplify right side
   8,119.22x = 68,673,100.16
5. Step 5: Solve for x
   x = 68,673,100.16/8,119.22
6. Step 6: Final answer
   x = 8,458.09