Finding the Fourth Proportional to 322,613.91, 482,974.56 and 226,216.89

Step by Step Solution

1. Step 1: Write the proportion equation
   322,613.91 : 482,974.56 = 226,216.89 : x
2. Step 2: Convert to fraction form
   322,613.91/482,974.56 = 226,216.89/x
3. Step 3: Cross multiply
   322,613.91x = 482,974.56 × 226,216.89
4. Step 4: Simplify right side
   322,613.91x = 109,257,002,912.32
5. Step 5: Solve for x
   x = 109,257,002,912.32/322,613.91
6. Step 6: Final answer
   x = 338,661.79