Finding the Fourth Proportional to 142,753.67, 196,991.83 and 79,087.67

Step by Step Solution

1. Step 1: Write the proportion equation
   142,753.67 : 196,991.83 = 79,087.67 : x
2. Step 2: Convert to fraction form
   142,753.67/196,991.83 = 79,087.67/x
3. Step 3: Cross multiply
   142,753.67x = 196,991.83 × 79,087.67
4. Step 4: Simplify right side
   142,753.67x = 15,579,624,843.74
5. Step 5: Solve for x
   x = 15,579,624,843.74/142,753.67
6. Step 6: Final answer
   x = 109,136.42