Finding the Fourth Proportional to 142,805.52, 197,073.27 and 79,144.38

Step by Step Solution

1. Step 1: Write the proportion equation
   142,805.52 : 197,073.27 = 79,144.38 : x
2. Step 2: Convert to fraction form
   142,805.52/197,073.27 = 79,144.38/x
3. Step 3: Cross multiply
   142,805.52x = 197,073.27 × 79,144.38
4. Step 4: Simplify right side
   142,805.52x = 15,597,241,768.72
5. Step 5: Solve for x
   x = 15,597,241,768.72/142,805.52
6. Step 6: Final answer
   x = 109,220.16