Finding the Fourth Proportional to 9,308.71, 12,846.81 and 5,117.77

Step by Step Solution

1. Step 1: Write the proportion equation
   9,308.71 : 12,846.81 = 5,117.77 : x
2. Step 2: Convert to fraction form
   9,308.71/12,846.81 = 5,117.77/x
3. Step 3: Cross multiply
   9,308.71x = 12,846.81 × 5,117.77
4. Step 4: Simplify right side
   9,308.71x = 65,747,018.81
5. Step 5: Solve for x
   x = 65,747,018.81/9,308.71
6. Step 6: Final answer
   x = 7,062.96