Finding the Fourth Proportional to 22,452.12, 30,984.86 and 12,381.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,452.12 : 30,984.86 = 12,381.76 : x
2. Step 2: Convert to fraction form
   22,452.12/30,984.86 = 12,381.76/x
3. Step 3: Cross multiply
   22,452.12x = 30,984.86 × 12,381.76
4. Step 4: Simplify right side
   22,452.12x = 383,647,100.15
5. Step 5: Solve for x
   x = 383,647,100.15/22,452.12
6. Step 6: Final answer
   x = 17,087.34