Finding the Fourth Proportional to 359,435, 496,020.30 and 200,459

Step by Step Solution

1. Step 1: Write the proportion equation
   359,435 : 496,020.30 = 200,459 : x
2. Step 2: Convert to fraction form
   359,435/496,020.30 = 200,459/x
3. Step 3: Cross multiply
   359,435x = 496,020.30 × 200,459
4. Step 4: Simplify right side
   359,435x = 99,431,733,317.70
5. Step 5: Solve for x
   x = 99,431,733,317.70/359,435
6. Step 6: Final answer
   x = 276,633.42