Finding the Fourth Proportional to 361,618.72, 499,063.30 and 200,524.28

Step by Step Solution

1. Step 1: Write the proportion equation
   361,618.72 : 499,063.30 = 200,524.28 : x
2. Step 2: Convert to fraction form
   361,618.72/499,063.30 = 200,524.28/x
3. Step 3: Cross multiply
   361,618.72x = 499,063.30 × 200,524.28
4. Step 4: Simplify right side
   361,618.72x = 100,074,308,906.92
5. Step 5: Solve for x
   x = 100,074,308,906.92/361,618.72
6. Step 6: Final answer
   x = 276,739.85