Finding the Fourth Proportional to 8,147.91, 12,223.87 and 2,601.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,147.91 : 12,223.87 = 2,601.25 : x
2. Step 2: Convert to fraction form
   8,147.91/12,223.87 = 2,601.25/x
3. Step 3: Cross multiply
   8,147.91x = 12,223.87 × 2,601.25
4. Step 4: Simplify right side
   8,147.91x = 31,797,328.83
5. Step 5: Solve for x
   x = 31,797,328.83/8,147.91
6. Step 6: Final answer
   x = 3,902.51