Finding the Fourth Proportional to 9,309.54, 12,846.84 and 5,117.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,309.54 : 12,846.84 = 5,117.76 : x
2. Step 2: Convert to fraction form
   9,309.54/12,846.84 = 5,117.76/x
3. Step 3: Cross multiply
   9,309.54x = 12,846.84 × 5,117.76
4. Step 4: Simplify right side
   9,309.54x = 65,747,043.88
5. Step 5: Solve for x
   x = 65,747,043.88/9,309.54
6. Step 6: Final answer
   x = 7,062.33