Finding the Fourth Proportional to 12,067.31, 18,103.30 and 5,831.63

Step by Step Solution

1. Step 1: Write the proportion equation
   12,067.31 : 18,103.30 = 5,831.63 : x
2. Step 2: Convert to fraction form
   12,067.31/18,103.30 = 5,831.63/x
3. Step 3: Cross multiply
   12,067.31x = 18,103.30 × 5,831.63
4. Step 4: Simplify right side
   12,067.31x = 105,571,710.17
5. Step 5: Solve for x
   x = 105,571,710.17/12,067.31
6. Step 6: Final answer
   x = 8,748.57