Finding the Fourth Proportional to 142,606.21, 196,817.16 and 82,165.27

Step by Step Solution

1. Step 1: Write the proportion equation
   142,606.21 : 196,817.16 = 82,165.27 : x
2. Step 2: Convert to fraction form
   142,606.21/196,817.16 = 82,165.27/x
3. Step 3: Cross multiply
   142,606.21x = 196,817.16 × 82,165.27
4. Step 4: Simplify right side
   142,606.21x = 16,171,535,092.03
5. Step 5: Solve for x
   x = 16,171,535,092.03/142,606.21
6. Step 6: Final answer
   x = 113,399.94