Finding the Fourth Proportional to 359,462, 496,057.56 and 200,486

Step by Step Solution

1. Step 1: Write the proportion equation
   359,462 : 496,057.56 = 200,486 : x
2. Step 2: Convert to fraction form
   359,462/496,057.56 = 200,486/x
3. Step 3: Cross multiply
   359,462x = 496,057.56 × 200,486
4. Step 4: Simplify right side
   359,462x = 99,452,595,974.16
5. Step 5: Solve for x
   x = 99,452,595,974.16/359,462
6. Step 6: Final answer
   x = 276,670.68