Finding the Fourth Proportional to 159,830.82, 220,568.06 and 88,209.30

Step by Step Solution

1. Step 1: Write the proportion equation
   159,830.82 : 220,568.06 = 88,209.30 : x
2. Step 2: Convert to fraction form
   159,830.82/220,568.06 = 88,209.30/x
3. Step 3: Cross multiply
   159,830.82x = 220,568.06 × 88,209.30
4. Step 4: Simplify right side
   159,830.82x = 19,456,155,222.61
5. Step 5: Solve for x
   x = 19,456,155,222.61/159,830.82
6. Step 6: Final answer
   x = 121,729.68