Finding the Fourth Proportional to 142,564.78, 196,760.24 and 82,123.80

Step by Step Solution

1. Step 1: Write the proportion equation
   142,564.78 : 196,760.24 = 82,123.80 : x
2. Step 2: Convert to fraction form
   142,564.78/196,760.24 = 82,123.80/x
3. Step 3: Cross multiply
   142,564.78x = 196,760.24 × 82,123.80
4. Step 4: Simplify right side
   142,564.78x = 16,158,698,597.71
5. Step 5: Solve for x
   x = 16,158,698,597.71/142,564.78
6. Step 6: Final answer
   x = 113,342.85