Finding the Fourth Proportional to 339,418.56, 468,345.60 and 196,150.98

Step by Step Solution

1. Step 1: Write the proportion equation
   339,418.56 : 468,345.60 = 196,150.98 : x
2. Step 2: Convert to fraction form
   339,418.56/468,345.60 = 196,150.98/x
3. Step 3: Cross multiply
   339,418.56x = 468,345.60 × 196,150.98
4. Step 4: Simplify right side
   339,418.56x = 91,866,448,418.69
5. Step 5: Solve for x
   x = 91,866,448,418.69/339,418.56
6. Step 6: Final answer
   x = 270,658.29