Finding the Fourth Proportional to 359,536.50, 496,160.37 and 200,560.50

Step by Step Solution

1. Step 1: Write the proportion equation
   359,536.50 : 496,160.37 = 200,560.50 : x
2. Step 2: Convert to fraction form
   359,536.50/496,160.37 = 200,560.50/x
3. Step 3: Cross multiply
   359,536.50x = 496,160.37 × 200,560.50
4. Step 4: Simplify right side
   359,536.50x = 99,510,171,887.39
5. Step 5: Solve for x
   x = 99,510,171,887.39/359,536.50
6. Step 6: Final answer
   x = 276,773.49