Finding the Fourth Proportional to 142,605.71, 196,816.47 and 82,164.77

Step by Step Solution

1. Step 1: Write the proportion equation
   142,605.71 : 196,816.47 = 82,164.77 : x
2. Step 2: Convert to fraction form
   142,605.71/196,816.47 = 82,164.77/x
3. Step 3: Cross multiply
   142,605.71x = 196,816.47 × 82,164.77
4. Step 4: Simplify right side
   142,605.71x = 16,171,379,989.76
5. Step 5: Solve for x
   x = 16,171,379,989.76/142,605.71
6. Step 6: Final answer
   x = 113,399.25