Finding the Fourth Proportional to 9,162.17, 12,643.72 and 5,183.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,162.17 : 12,643.72 = 5,183.25 : x
2. Step 2: Convert to fraction form
   9,162.17/12,643.72 = 5,183.25/x
3. Step 3: Cross multiply
   9,162.17x = 12,643.72 × 5,183.25
4. Step 4: Simplify right side
   9,162.17x = 65,535,561.69
5. Step 5: Solve for x
   x = 65,535,561.69/9,162.17
6. Step 6: Final answer
   x = 7,152.84