Finding the Fourth Proportional to 227,063.69, 339,986.42 and 126,938.72

Step by Step Solution

1. Step 1: Write the proportion equation
   227,063.69 : 339,986.42 = 126,938.72 : x
2. Step 2: Convert to fraction form
   227,063.69/339,986.42 = 126,938.72/x
3. Step 3: Cross multiply
   227,063.69x = 339,986.42 × 126,938.72
4. Step 4: Simplify right side
   227,063.69x = 43,157,440,972.18
5. Step 5: Solve for x
   x = 43,157,440,972.18/227,063.69
6. Step 6: Final answer
   x = 190,067.56