Finding the Fourth Proportional to 321,946.69, 444,288.15 and 201,158.02

Step by Step Solution

1. Step 1: Write the proportion equation
   321,946.69 : 444,288.15 = 201,158.02 : x
2. Step 2: Convert to fraction form
   321,946.69/444,288.15 = 201,158.02/x
3. Step 3: Cross multiply
   321,946.69x = 444,288.15 × 201,158.02
4. Step 4: Simplify right side
   321,946.69x = 89,372,123,557.67
5. Step 5: Solve for x
   x = 89,372,123,557.67/321,946.69
6. Step 6: Final answer
   x = 277,599.14