Finding the Fourth Proportional to 275,162.82, 379,728.82 and 160,438.32

Step by Step Solution

1. Step 1: Write the proportion equation
   275,162.82 : 379,728.82 = 160,438.32 : x
2. Step 2: Convert to fraction form
   275,162.82/379,728.82 = 160,438.32/x
3. Step 3: Cross multiply
   275,162.82x = 379,728.82 × 160,438.32
4. Step 4: Simplify right side
   275,162.82x = 60,923,053,936.38
5. Step 5: Solve for x
   x = 60,923,053,936.38/275,162.82
6. Step 6: Final answer
   x = 221,407.29