Finding the Fourth Proportional to 287,425.72, 396,659.73 and 160,101.37

Step by Step Solution

1. Step 1: Write the proportion equation
   287,425.72 : 396,659.73 = 160,101.37 : x
2. Step 2: Convert to fraction form
   287,425.72/396,659.73 = 160,101.37/x
3. Step 3: Cross multiply
   287,425.72x = 396,659.73 × 160,101.37
4. Step 4: Simplify right side
   287,425.72x = 63,505,766,196.83
5. Step 5: Solve for x
   x = 63,505,766,196.83/287,425.72
6. Step 6: Final answer
   x = 220,946.71