Finding the Fourth Proportional to 142,696.67, 196,921.28 and 79,034.42

Step by Step Solution

1. Step 1: Write the proportion equation
   142,696.67 : 196,921.28 = 79,034.42 : x
2. Step 2: Convert to fraction form
   142,696.67/196,921.28 = 79,034.42/x
3. Step 3: Cross multiply
   142,696.67x = 196,921.28 × 79,034.42
4. Step 4: Simplify right side
   142,696.67x = 15,563,557,770.68
5. Step 5: Solve for x
   x = 15,563,557,770.68/142,696.67
6. Step 6: Final answer
   x = 109,067.42