Finding the Fourth Proportional to 321,128.06, 443,183.73 and 177,901.43

Step by Step Solution

1. Step 1: Write the proportion equation
   321,128.06 : 443,183.73 = 177,901.43 : x
2. Step 2: Convert to fraction form
   321,128.06/443,183.73 = 177,901.43/x
3. Step 3: Cross multiply
   321,128.06x = 443,183.73 × 177,901.43
4. Step 4: Simplify right side
   321,128.06x = 78,843,017,103.82
5. Step 5: Solve for x
   x = 78,843,017,103.82/321,128.06
6. Step 6: Final answer
   x = 245,518.93