Finding the Fourth Proportional to 142,573.70, 196,800.89 and 82,168.46

Step by Step Solution

1. Step 1: Write the proportion equation
   142,573.70 : 196,800.89 = 82,168.46 : x
2. Step 2: Convert to fraction form
   142,573.70/196,800.89 = 82,168.46/x
3. Step 3: Cross multiply
   142,573.70x = 196,800.89 × 82,168.46
4. Step 4: Simplify right side
   142,573.70x = 16,170,824,663.08
5. Step 5: Solve for x
   x = 16,170,824,663.08/142,573.70
6. Step 6: Final answer
   x = 113,420.81