Finding the Fourth Proportional to 361,538.18, 498,952.56 and 200,443.76

Step by Step Solution

1. Step 1: Write the proportion equation
   361,538.18 : 498,952.56 = 200,443.76 : x
2. Step 2: Convert to fraction form
   361,538.18/498,952.56 = 200,443.76/x
3. Step 3: Cross multiply
   361,538.18x = 498,952.56 × 200,443.76
4. Step 4: Simplify right side
   361,538.18x = 100,011,927,188.03
5. Step 5: Solve for x
   x = 100,011,927,188.03/361,538.18
6. Step 6: Final answer
   x = 276,628.95