Finding the Fourth Proportional to 9,315.08, 12,854.87 and 5,066.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,315.08 : 12,854.87 = 5,066.18 : x
2. Step 2: Convert to fraction form
   9,315.08/12,854.87 = 5,066.18/x
3. Step 3: Cross multiply
   9,315.08x = 12,854.87 × 5,066.18
4. Step 4: Simplify right side
   9,315.08x = 65,124,995.69
5. Step 5: Solve for x
   x = 65,124,995.69/9,315.08
6. Step 6: Final answer
   x = 6,991.35