Finding the Fourth Proportional to 5,616.72, 8,408.78 and 3,269.57

Step by Step Solution

1. Step 1: Write the proportion equation
   5,616.72 : 8,408.78 = 3,269.57 : x
2. Step 2: Convert to fraction form
   5,616.72/8,408.78 = 3,269.57/x
3. Step 3: Cross multiply
   5,616.72x = 8,408.78 × 3,269.57
4. Step 4: Simplify right side
   5,616.72x = 27,493,094.82
5. Step 5: Solve for x
   x = 27,493,094.82/5,616.72
6. Step 6: Final answer
   x = 4,894.87