Finding the Fourth Proportional to 142,945.68, 197,271.27 and 79,279.14

Step by Step Solution

1. Step 1: Write the proportion equation
   142,945.68 : 197,271.27 = 79,279.14 : x
2. Step 2: Convert to fraction form
   142,945.68/197,271.27 = 79,279.14/x
3. Step 3: Cross multiply
   142,945.68x = 197,271.27 × 79,279.14
4. Step 4: Simplify right side
   142,945.68x = 15,639,496,632.31
5. Step 5: Solve for x
   x = 15,639,496,632.31/142,945.68
6. Step 6: Final answer
   x = 109,408.67