Finding the Fourth Proportional to 8,150.09, 12,225.78 and 2,604.21

Step by Step Solution

1. Step 1: Write the proportion equation
   8,150.09 : 12,225.78 = 2,604.21 : x
2. Step 2: Convert to fraction form
   8,150.09/12,225.78 = 2,604.21/x
3. Step 3: Cross multiply
   8,150.09x = 12,225.78 × 2,604.21
4. Step 4: Simplify right side
   8,150.09x = 31,838,498.53
5. Step 5: Solve for x
   x = 31,838,498.53/8,150.09
6. Step 6: Final answer
   x = 3,906.52