Finding the Fourth Proportional to 8,846.78, 12,205.25 and 5,261.87

Step by Step Solution

1. Step 1: Write the proportion equation
   8,846.78 : 12,205.25 = 5,261.87 : x
2. Step 2: Convert to fraction form
   8,846.78/12,205.25 = 5,261.87/x
3. Step 3: Cross multiply
   8,846.78x = 12,205.25 × 5,261.87
4. Step 4: Simplify right side
   8,846.78x = 64,222,469.05
5. Step 5: Solve for x
   x = 64,222,469.05/8,846.78
6. Step 6: Final answer
   x = 7,259.42