Finding the Fourth Proportional to 142,279.56, 213,542.06 and 79,162.74

Step by Step Solution

1. Step 1: Write the proportion equation
   142,279.56 : 213,542.06 = 79,162.74 : x
2. Step 2: Convert to fraction form
   142,279.56/213,542.06 = 79,162.74/x
3. Step 3: Cross multiply
   142,279.56x = 213,542.06 × 79,162.74
4. Step 4: Simplify right side
   142,279.56x = 16,904,574,179.03
5. Step 5: Solve for x
   x = 16,904,574,179.03/142,279.56
6. Step 6: Final answer
   x = 118,812.39