Finding the Fourth Proportional to 142,660.44, 196,915.05 and 82,271.30

Step by Step Solution

1. Step 1: Write the proportion equation
   142,660.44 : 196,915.05 = 82,271.30 : x
2. Step 2: Convert to fraction form
   142,660.44/196,915.05 = 82,271.30/x
3. Step 3: Cross multiply
   142,660.44x = 196,915.05 × 82,271.30
4. Step 4: Simplify right side
   142,660.44x = 16,200,456,168.49
5. Step 5: Solve for x
   x = 16,200,456,168.49/142,660.44
6. Step 6: Final answer
   x = 113,559.56