Finding the Fourth Proportional to 503,499.30, 694,828.69 and 277,144.80

Step by Step Solution

1. Step 1: Write the proportion equation
   503,499.30 : 694,828.69 = 277,144.80 : x
2. Step 2: Convert to fraction form
   503,499.30/694,828.69 = 277,144.80/x
3. Step 3: Cross multiply
   503,499.30x = 694,828.69 × 277,144.80
4. Step 4: Simplify right side
   503,499.30x = 192,568,158,324.31
5. Step 5: Solve for x
   x = 192,568,158,324.31/503,499.30
6. Step 6: Final answer
   x = 382,459.63