Finding the Fourth Proportional to 8,269.59, 12,405.75 and 3,831.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,269.59 : 12,405.75 = 3,831.69 : x
2. Step 2: Convert to fraction form
   8,269.59/12,405.75 = 3,831.69/x
3. Step 3: Cross multiply
   8,269.59x = 12,405.75 × 3,831.69
4. Step 4: Simplify right side
   8,269.59x = 47,534,988.22
5. Step 5: Solve for x
   x = 47,534,988.22/8,269.59
6. Step 6: Final answer
   x = 5,748.17