Finding the Fourth Proportional to 9,223.57, 12,713.61 and 6,395.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,223.57 : 12,713.61 = 6,395.05 : x
2. Step 2: Convert to fraction form
   9,223.57/12,713.61 = 6,395.05/x
3. Step 3: Cross multiply
   9,223.57x = 12,713.61 × 6,395.05
4. Step 4: Simplify right side
   9,223.57x = 81,304,171.63
5. Step 5: Solve for x
   x = 81,304,171.63/9,223.57
6. Step 6: Final answer
   x = 8,814.83