Finding the Fourth Proportional to 361,440.82, 498,792.50 and 200,298.61

Step by Step Solution

1. Step 1: Write the proportion equation
   361,440.82 : 498,792.50 = 200,298.61 : x
2. Step 2: Convert to fraction form
   361,440.82/498,792.50 = 200,298.61/x
3. Step 3: Cross multiply
   361,440.82x = 498,792.50 × 200,298.61
4. Step 4: Simplify right side
   361,440.82x = 99,907,444,428.43
5. Step 5: Solve for x
   x = 99,907,444,428.43/361,440.82
6. Step 6: Final answer
   x = 276,414.39