Finding the Fourth Proportional to 479,042.72, 661,050.96 and 275,046.56

Step by Step Solution

1. Step 1: Write the proportion equation
   479,042.72 : 661,050.96 = 275,046.56 : x
2. Step 2: Convert to fraction form
   479,042.72/661,050.96 = 275,046.56/x
3. Step 3: Cross multiply
   479,042.72x = 661,050.96 × 275,046.56
4. Step 4: Simplify right side
   479,042.72x = 181,819,792,532.70
5. Step 5: Solve for x
   x = 181,819,792,532.70/479,042.72
6. Step 6: Final answer
   x = 379,548.18