Finding the Fourth Proportional to 142,581.42, 196,811.56 and 82,176.16

Step by Step Solution

1. Step 1: Write the proportion equation
   142,581.42 : 196,811.56 = 82,176.16 : x
2. Step 2: Convert to fraction form
   142,581.42/196,811.56 = 82,176.16/x
3. Step 3: Cross multiply
   142,581.42x = 196,811.56 × 82,176.16
4. Step 4: Simplify right side
   142,581.42x = 16,173,218,244.41
5. Step 5: Solve for x
   x = 16,173,218,244.41/142,581.42
6. Step 6: Final answer
   x = 113,431.46