Finding the Fourth Proportional to 9,309.75, 12,847.46 and 5,118.27

Step by Step Solution

1. Step 1: Write the proportion equation
   9,309.75 : 12,847.46 = 5,118.27 : x
2. Step 2: Convert to fraction form
   9,309.75/12,847.46 = 5,118.27/x
3. Step 3: Cross multiply
   9,309.75x = 12,847.46 × 5,118.27
4. Step 4: Simplify right side
   9,309.75x = 65,756,769.09
5. Step 5: Solve for x
   x = 65,756,769.09/9,309.75
6. Step 6: Final answer
   x = 7,063.22