Finding the Fourth Proportional to 9,647.62, 13,311.57 and 5,872.75

Step by Step Solution

1. Step 1: Write the proportion equation
   9,647.62 : 13,311.57 = 5,872.75 : x
2. Step 2: Convert to fraction form
   9,647.62/13,311.57 = 5,872.75/x
3. Step 3: Cross multiply
   9,647.62x = 13,311.57 × 5,872.75
4. Step 4: Simplify right side
   9,647.62x = 78,175,522.72
5. Step 5: Solve for x
   x = 78,175,522.72/9,647.62
6. Step 6: Final answer
   x = 8,103.09