Finding the Fourth Proportional to 9,143.37, 13,716.18 and 3,218.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,143.37 : 13,716.18 = 3,218.86 : x
2. Step 2: Convert to fraction form
   9,143.37/13,716.18 = 3,218.86/x
3. Step 3: Cross multiply
   9,143.37x = 13,716.18 × 3,218.86
4. Step 4: Simplify right side
   9,143.37x = 44,150,463.15
5. Step 5: Solve for x
   x = 44,150,463.15/9,143.37
6. Step 6: Final answer
   x = 4,828.69