Finding the Fourth Proportional to 142,608.87, 196,821 and 82,167.84

Step by Step Solution

1. Step 1: Write the proportion equation
   142,608.87 : 196,821 = 82,167.84 : x
2. Step 2: Convert to fraction form
   142,608.87/196,821 = 82,167.84/x
3. Step 3: Cross multiply
   142,608.87x = 196,821 × 82,167.84
4. Step 4: Simplify right side
   142,608.87x = 16,172,356,436.64
5. Step 5: Solve for x
   x = 16,172,356,436.64/142,608.87
6. Step 6: Final answer
   x = 113,403.58