Finding the Fourth Proportional to 423,663, 584,706.78 and 244,815

Step by Step Solution

1. Step 1: Write the proportion equation
   423,663 : 584,706.78 = 244,815 : x
2. Step 2: Convert to fraction form
   423,663/584,706.78 = 244,815/x
3. Step 3: Cross multiply
   423,663x = 584,706.78 × 244,815
4. Step 4: Simplify right side
   423,663x = 143,144,990,345.70
5. Step 5: Solve for x
   x = 143,144,990,345.70/423,663
6. Step 6: Final answer
   x = 337,874.66