Finding the Fourth Proportional to 404,450.70, 606,384.45 and 227,012.10

Step by Step Solution

1. Step 1: Write the proportion equation
   404,450.70 : 606,384.45 = 227,012.10 : x
2. Step 2: Convert to fraction form
   404,450.70/606,384.45 = 227,012.10/x
3. Step 3: Cross multiply
   404,450.70x = 606,384.45 × 227,012.10
4. Step 4: Simplify right side
   404,450.70x = 137,656,607,401.85
5. Step 5: Solve for x
   x = 137,656,607,401.85/404,450.70
6. Step 6: Final answer
   x = 340,354.48