Finding the Fourth Proportional to 9,309.57, 12,847.85 and 5,117.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,309.57 : 12,847.85 = 5,117.82 : x
2. Step 2: Convert to fraction form
   9,309.57/12,847.85 = 5,117.82/x
3. Step 3: Cross multiply
   9,309.57x = 12,847.85 × 5,117.82
4. Step 4: Simplify right side
   9,309.57x = 65,752,958.10
5. Step 5: Solve for x
   x = 65,752,958.10/9,309.57
6. Step 6: Final answer
   x = 7,062.94