Finding the Fourth Proportional to 159,883.20, 239,591.52 and 89,782.56

Step by Step Solution

1. Step 1: Write the proportion equation
   159,883.20 : 239,591.52 = 89,782.56 : x
2. Step 2: Convert to fraction form
   159,883.20/239,591.52 = 89,782.56/x
3. Step 3: Cross multiply
   159,883.20x = 239,591.52 × 89,782.56
4. Step 4: Simplify right side
   159,883.20x = 21,511,140,019.89
5. Step 5: Solve for x
   x = 21,511,140,019.89/159,883.20
6. Step 6: Final answer
   x = 134,542.84