Finding the Fourth Proportional to 142,650.81, 196,857.81 and 82,221.04

Step by Step Solution

1. Step 1: Write the proportion equation
   142,650.81 : 196,857.81 = 82,221.04 : x
2. Step 2: Convert to fraction form
   142,650.81/196,857.81 = 82,221.04/x
3. Step 3: Cross multiply
   142,650.81x = 196,857.81 × 82,221.04
4. Step 4: Simplify right side
   142,650.81x = 16,185,853,870.32
5. Step 5: Solve for x
   x = 16,185,853,870.32/142,650.81
6. Step 6: Final answer
   x = 113,464.86