Finding the Fourth Proportional to 142,773.41, 197,028.47 and 79,112.27

Step by Step Solution

1. Step 1: Write the proportion equation
   142,773.41 : 197,028.47 = 79,112.27 : x
2. Step 2: Convert to fraction form
   142,773.41/197,028.47 = 79,112.27/x
3. Step 3: Cross multiply
   142,773.41x = 197,028.47 × 79,112.27
4. Step 4: Simplify right side
   142,773.41x = 15,587,369,516.33
5. Step 5: Solve for x
   x = 15,587,369,516.33/142,773.41
6. Step 6: Final answer
   x = 109,175.58