Finding the Fourth Proportional to 12,596.47, 18,897.42 and 3,831.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,596.47 : 18,897.42 = 3,831.16 : x
2. Step 2: Convert to fraction form
   12,596.47/18,897.42 = 3,831.16/x
3. Step 3: Cross multiply
   12,596.47x = 18,897.42 × 3,831.16
4. Step 4: Simplify right side
   12,596.47x = 72,398,945.12
5. Step 5: Solve for x
   x = 72,398,945.12/12,596.47
6. Step 6: Final answer
   x = 5,747.56