Finding the Fourth Proportional to 142,661.41, 196,872.42 and 82,231.63

Step by Step Solution

1. Step 1: Write the proportion equation
   142,661.41 : 196,872.42 = 82,231.63 : x
2. Step 2: Convert to fraction form
   142,661.41/196,872.42 = 82,231.63/x
3. Step 3: Cross multiply
   142,661.41x = 196,872.42 × 82,231.63
4. Step 4: Simplify right side
   142,661.41x = 16,189,139,998.64
5. Step 5: Solve for x
   x = 16,189,139,998.64/142,661.41
6. Step 6: Final answer
   x = 113,479.46