Finding the Fourth Proportional to 479,562.82, 661,812.78 and 261,784.42

Step by Step Solution

1. Step 1: Write the proportion equation
   479,562.82 : 661,812.78 = 261,784.42 : x
2. Step 2: Convert to fraction form
   479,562.82/661,812.78 = 261,784.42/x
3. Step 3: Cross multiply
   479,562.82x = 661,812.78 × 261,784.42
4. Step 4: Simplify right side
   479,562.82x = 173,252,274,760.89
5. Step 5: Solve for x
   x = 173,252,274,760.89/479,562.82
6. Step 6: Final answer
   x = 361,271.28