Finding the Fourth Proportional to 8,608.15, 12,913.57 and 3,677.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,608.15 : 12,913.57 = 3,677.82 : x
2. Step 2: Convert to fraction form
   8,608.15/12,913.57 = 3,677.82/x
3. Step 3: Cross multiply
   8,608.15x = 12,913.57 × 3,677.82
4. Step 4: Simplify right side
   8,608.15x = 47,493,786.02
5. Step 5: Solve for x
   x = 47,493,786.02/8,608.15
6. Step 6: Final answer
   x = 5,517.30