Finding the Fourth Proportional to 142,608.22, 196,819.92 and 82,167.28

Step by Step Solution

1. Step 1: Write the proportion equation
   142,608.22 : 196,819.92 = 82,167.28 : x
2. Step 2: Convert to fraction form
   142,608.22/196,819.92 = 82,167.28/x
3. Step 3: Cross multiply
   142,608.22x = 196,819.92 × 82,167.28
4. Step 4: Simplify right side
   142,608.22x = 16,172,157,476.22
5. Step 5: Solve for x
   x = 16,172,157,476.22/142,608.22
6. Step 6: Final answer
   x = 113,402.70