Finding the Fourth Proportional to 479,039.52, 661,052.30 and 274,946.82

Step by Step Solution

1. Step 1: Write the proportion equation
   479,039.52 : 661,052.30 = 274,946.82 : x
2. Step 2: Convert to fraction form
   479,039.52/661,052.30 = 274,946.82/x
3. Step 3: Cross multiply
   479,039.52x = 661,052.30 × 274,946.82
4. Step 4: Simplify right side
   479,039.52x = 181,754,227,738.69
5. Step 5: Solve for x
   x = 181,754,227,738.69/479,039.52
6. Step 6: Final answer
   x = 379,413.85