Finding the Fourth Proportional to 8,607.96, 12,894.84 and 5,677.38

Step by Step Solution

1. Step 1: Write the proportion equation
   8,607.96 : 12,894.84 = 5,677.38 : x
2. Step 2: Convert to fraction form
   8,607.96/12,894.84 = 5,677.38/x
3. Step 3: Cross multiply
   8,607.96x = 12,894.84 × 5,677.38
4. Step 4: Simplify right side
   8,607.96x = 73,208,906.72
5. Step 5: Solve for x
   x = 73,208,906.72/8,607.96
6. Step 6: Final answer
   x = 8,504.79