Finding the Fourth Proportional to 8,608.41, 12,910.32 and 2,763.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,608.41 : 12,910.32 = 2,763.72 : x
2. Step 2: Convert to fraction form
   8,608.41/12,910.32 = 2,763.72/x
3. Step 3: Cross multiply
   8,608.41x = 12,910.32 × 2,763.72
4. Step 4: Simplify right side
   8,608.41x = 35,680,509.59
5. Step 5: Solve for x
   x = 35,680,509.59/8,608.41
6. Step 6: Final answer
   x = 4,144.84