Finding the Fourth Proportional to 339,383.50, 468,390.54 and 196,144.72

Step by Step Solution

1. Step 1: Write the proportion equation
   339,383.50 : 468,390.54 = 196,144.72 : x
2. Step 2: Convert to fraction form
   339,383.50/468,390.54 = 196,144.72/x
3. Step 3: Cross multiply
   339,383.50x = 468,390.54 × 196,144.72
4. Step 4: Simplify right side
   339,383.50x = 91,872,331,318.95
5. Step 5: Solve for x
   x = 91,872,331,318.95/339,383.50
6. Step 6: Final answer
   x = 270,703.59