Finding the Fourth Proportional to 359,655, 496,323.90 and 200,679

Step by Step Solution

1. Step 1: Write the proportion equation
   359,655 : 496,323.90 = 200,679 : x
2. Step 2: Convert to fraction form
   359,655/496,323.90 = 200,679/x
3. Step 3: Cross multiply
   359,655x = 496,323.90 × 200,679
4. Step 4: Simplify right side
   359,655x = 99,601,783,928.10
5. Step 5: Solve for x
   x = 99,601,783,928.10/359,655
6. Step 6: Final answer
   x = 276,937.02