Finding the Fourth Proportional to 362,986.50, 500,892.72 and 201,831.60

Step by Step Solution

1. Step 1: Write the proportion equation
   362,986.50 : 500,892.72 = 201,831.60 : x
2. Step 2: Convert to fraction form
   362,986.50/500,892.72 = 201,831.60/x
3. Step 3: Cross multiply
   362,986.50x = 500,892.72 × 201,831.60
4. Step 4: Simplify right side
   362,986.50x = 101,095,979,105.95
5. Step 5: Solve for x
   x = 101,095,979,105.95/362,986.50
6. Step 6: Final answer
   x = 278,511.68