Finding the Fourth Proportional to 142,729.54, 196,964.05 and 79,067.86

Step by Step Solution

1. Step 1: Write the proportion equation
   142,729.54 : 196,964.05 = 79,067.86 : x
2. Step 2: Convert to fraction form
   142,729.54/196,964.05 = 79,067.86/x
3. Step 3: Cross multiply
   142,729.54x = 196,964.05 × 79,067.86
4. Step 4: Simplify right side
   142,729.54x = 15,573,524,550.27
5. Step 5: Solve for x
   x = 15,573,524,550.27/142,729.54
6. Step 6: Final answer
   x = 109,112.14