Finding the Fourth Proportional to 359,496, 496,104.48 and 200,520

Step by Step Solution

1. Step 1: Write the proportion equation
   359,496 : 496,104.48 = 200,520 : x
2. Step 2: Convert to fraction form
   359,496/496,104.48 = 200,520/x
3. Step 3: Cross multiply
   359,496x = 496,104.48 × 200,520
4. Step 4: Simplify right side
   359,496x = 99,478,870,329.60
5. Step 5: Solve for x
   x = 99,478,870,329.60/359,496
6. Step 6: Final answer
   x = 276,717.60