Finding the Fourth Proportional to 363,076.50, 501,042.78 and 199,729.49

Step by Step Solution

1. Step 1: Write the proportion equation
   363,076.50 : 501,042.78 = 199,729.49 : x
2. Step 2: Convert to fraction form
   363,076.50/501,042.78 = 199,729.49/x
3. Step 3: Cross multiply
   363,076.50x = 501,042.78 × 199,729.49
4. Step 4: Simplify right side
   363,076.50x = 100,073,016,412.37
5. Step 5: Solve for x
   x = 100,073,016,412.37/363,076.50
6. Step 6: Final answer
   x = 275,625.15