Finding the Fourth Proportional to 8,604.78, 12,908.25 and 2,759.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,604.78 : 12,908.25 = 2,759.82 : x
2. Step 2: Convert to fraction form
   8,604.78/12,908.25 = 2,759.82/x
3. Step 3: Cross multiply
   8,604.78x = 12,908.25 × 2,759.82
4. Step 4: Simplify right side
   8,604.78x = 35,624,446.52
5. Step 5: Solve for x
   x = 35,624,446.52/8,604.78
6. Step 6: Final answer
   x = 4,140.08