Finding the Fourth Proportional to 22,452.81, 30,986.40 and 12,381.27

Step by Step Solution

1. Step 1: Write the proportion equation
   22,452.81 : 30,986.40 = 12,381.27 : x
2. Step 2: Convert to fraction form
   22,452.81/30,986.40 = 12,381.27/x
3. Step 3: Cross multiply
   22,452.81x = 30,986.40 × 12,381.27
4. Step 4: Simplify right side
   22,452.81x = 383,650,984.73
5. Step 5: Solve for x
   x = 383,650,984.73/22,452.81
6. Step 6: Final answer
   x = 17,086.99