Finding the Fourth Proportional to 275,310.42, 379,928.52 and 160,667.88

Step by Step Solution

1. Step 1: Write the proportion equation
   275,310.42 : 379,928.52 = 160,667.88 : x
2. Step 2: Convert to fraction form
   275,310.42/379,928.52 = 160,667.88/x
3. Step 3: Cross multiply
   275,310.42x = 379,928.52 × 160,667.88
4. Step 4: Simplify right side
   275,310.42x = 61,042,309,859.94
5. Step 5: Solve for x
   x = 61,042,309,859.94/275,310.42
6. Step 6: Final answer
   x = 221,721.76