Finding the Fourth Proportional to 238,435.72, 329,142.18 and 160,928.20

Step by Step Solution

1. Step 1: Write the proportion equation
   238,435.72 : 329,142.18 = 160,928.20 : x
2. Step 2: Convert to fraction form
   238,435.72/329,142.18 = 160,928.20/x
3. Step 3: Cross multiply
   238,435.72x = 329,142.18 × 160,928.20
4. Step 4: Simplify right side
   238,435.72x = 52,968,258,571.48
5. Step 5: Solve for x
   x = 52,968,258,571.48/238,435.72
6. Step 6: Final answer
   x = 222,149.01