Finding the Fourth Proportional to 315,404.76, 435,414.78 and 200,797.32

Step by Step Solution

1. Step 1: Write the proportion equation
   315,404.76 : 435,414.78 = 200,797.32 : x
2. Step 2: Convert to fraction form
   315,404.76/435,414.78 = 200,797.32/x
3. Step 3: Cross multiply
   315,404.76x = 435,414.78 × 200,797.32
4. Step 4: Simplify right side
   315,404.76x = 87,430,120,912.39
5. Step 5: Solve for x
   x = 87,430,120,912.39/315,404.76
6. Step 6: Final answer
   x = 277,199.75