Finding the Fourth Proportional to 9,218.52, 12,715.10 and 5,683.68

Step by Step Solution

1. Step 1: Write the proportion equation
   9,218.52 : 12,715.10 = 5,683.68 : x
2. Step 2: Convert to fraction form
   9,218.52/12,715.10 = 5,683.68/x
3. Step 3: Cross multiply
   9,218.52x = 12,715.10 × 5,683.68
4. Step 4: Simplify right side
   9,218.52x = 72,268,559.57
5. Step 5: Solve for x
   x = 72,268,559.57/9,218.52
6. Step 6: Final answer
   x = 7,839.50