Finding the Fourth Proportional to 339,288.38, 468,275.56 and 196,131.42

Step by Step Solution

1. Step 1: Write the proportion equation
   339,288.38 : 468,275.56 = 196,131.42 : x
2. Step 2: Convert to fraction form
   339,288.38/468,275.56 = 196,131.42/x
3. Step 3: Cross multiply
   339,288.38x = 468,275.56 × 196,131.42
4. Step 4: Simplify right side
   339,288.38x = 91,843,550,534.10
5. Step 5: Solve for x
   x = 91,843,550,534.10/339,288.38
6. Step 6: Final answer
   x = 270,694.65