Finding the Fourth Proportional to 142,679.88, 196,901.69 and 79,022.39

Step by Step Solution

1. Step 1: Write the proportion equation
   142,679.88 : 196,901.69 = 79,022.39 : x
2. Step 2: Convert to fraction form
   142,679.88/196,901.69 = 79,022.39/x
3. Step 3: Cross multiply
   142,679.88x = 196,901.69 × 79,022.39
4. Step 4: Simplify right side
   142,679.88x = 15,559,640,759.22
5. Step 5: Solve for x
   x = 15,559,640,759.22/142,679.88
6. Step 6: Final answer
   x = 109,052.80