Finding the Fourth Proportional to 142,572.03, 196,798.56 and 82,166.79

Step by Step Solution

1. Step 1: Write the proportion equation
   142,572.03 : 196,798.56 = 82,166.79 : x
2. Step 2: Convert to fraction form
   142,572.03/196,798.56 = 82,166.79/x
3. Step 3: Cross multiply
   142,572.03x = 196,798.56 × 82,166.79
4. Step 4: Simplify right side
   142,572.03x = 16,170,305,951.82
5. Step 5: Solve for x
   x = 16,170,305,951.82/142,572.03
6. Step 6: Final answer
   x = 113,418.50