Finding the Fourth Proportional to 285,196.88, 428,215.86 and 159,083.52

Step by Step Solution

1. Step 1: Write the proportion equation
   285,196.88 : 428,215.86 = 159,083.52 : x
2. Step 2: Convert to fraction form
   285,196.88/428,215.86 = 159,083.52/x
3. Step 3: Cross multiply
   285,196.88x = 428,215.86 × 159,083.52
4. Step 4: Simplify right side
   285,196.88x = 68,122,086,328.63
5. Step 5: Solve for x
   x = 68,122,086,328.63/285,196.88
6. Step 6: Final answer
   x = 238,859.86