Finding the Fourth Proportional to 9,315.18, 12,854.78 and 5,282.02

Step by Step Solution

1. Step 1: Write the proportion equation
   9,315.18 : 12,854.78 = 5,282.02 : x
2. Step 2: Convert to fraction form
   9,315.18/12,854.78 = 5,282.02/x
3. Step 3: Cross multiply
   9,315.18x = 12,854.78 × 5,282.02
4. Step 4: Simplify right side
   9,315.18x = 67,899,205.06
5. Step 5: Solve for x
   x = 67,899,205.06/9,315.18
6. Step 6: Final answer
   x = 7,289.09