Finding the Fourth Proportional to 142,626.42, 196,831.01 and 78,964.27

Step by Step Solution

1. Step 1: Write the proportion equation
   142,626.42 : 196,831.01 = 78,964.27 : x
2. Step 2: Convert to fraction form
   142,626.42/196,831.01 = 78,964.27/x
3. Step 3: Cross multiply
   142,626.42x = 196,831.01 × 78,964.27
4. Step 4: Simplify right side
   142,626.42x = 15,542,616,723.35
5. Step 5: Solve for x
   x = 15,542,616,723.35/142,626.42
6. Step 6: Final answer
   x = 108,974.32