Finding the Fourth Proportional to 363,615.63, 501,784.78 and 200,269

Step by Step Solution

1. Step 1: Write the proportion equation
   363,615.63 : 501,784.78 = 200,269 : x
2. Step 2: Convert to fraction form
   363,615.63/501,784.78 = 200,269/x
3. Step 3: Cross multiply
   363,615.63x = 501,784.78 × 200,269
4. Step 4: Simplify right side
   363,615.63x = 100,491,936,105.82
5. Step 5: Solve for x
   x = 100,491,936,105.82/363,615.63
6. Step 6: Final answer
   x = 276,368.58