Finding the Fourth Proportional to 8,469.50, 12,706.28 and 5,369.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,469.50 : 12,706.28 = 5,369.42 : x
2. Step 2: Convert to fraction form
   8,469.50/12,706.28 = 5,369.42/x
3. Step 3: Cross multiply
   8,469.50x = 12,706.28 × 5,369.42
4. Step 4: Simplify right side
   8,469.50x = 68,225,353.96
5. Step 5: Solve for x
   x = 68,225,353.96/8,469.50
6. Step 6: Final answer
   x = 8,055.42