Finding the Fourth Proportional to 8,608.82, 12,908.94 and 3,061.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,608.82 : 12,908.94 = 3,061.32 : x
2. Step 2: Convert to fraction form
   8,608.82/12,908.94 = 3,061.32/x
3. Step 3: Cross multiply
   8,608.82x = 12,908.94 × 3,061.32
4. Step 4: Simplify right side
   8,608.82x = 39,518,396.20
5. Step 5: Solve for x
   x = 39,518,396.20/8,608.82
6. Step 6: Final answer
   x = 4,590.46