Finding the Fourth Proportional to 142,753.42, 196,991.49 and 79,087.42

Step by Step Solution

1. Step 1: Write the proportion equation
   142,753.42 : 196,991.49 = 79,087.42 : x
2. Step 2: Convert to fraction form
   142,753.42/196,991.49 = 79,087.42/x
3. Step 3: Cross multiply
   142,753.42x = 196,991.49 × 79,087.42
4. Step 4: Simplify right side
   142,753.42x = 15,579,548,706.06
5. Step 5: Solve for x
   x = 15,579,548,706.06/142,753.42
6. Step 6: Final answer
   x = 109,136.08