Finding the Fourth Proportional to 8,604.74, 12,905.89 and 2,760.59

Step by Step Solution

1. Step 1: Write the proportion equation
   8,604.74 : 12,905.89 = 2,760.59 : x
2. Step 2: Convert to fraction form
   8,604.74/12,905.89 = 2,760.59/x
3. Step 3: Cross multiply
   8,604.74x = 12,905.89 × 2,760.59
4. Step 4: Simplify right side
   8,604.74x = 35,627,870.88
5. Step 5: Solve for x
   x = 35,627,870.88/8,604.74
6. Step 6: Final answer
   x = 4,140.49