Finding the Fourth Proportional to 159,745, 220,448.10 and 89,089

Step by Step Solution

1. Step 1: Write the proportion equation
   159,745 : 220,448.10 = 89,089 : x
2. Step 2: Convert to fraction form
   159,745/220,448.10 = 89,089/x
3. Step 3: Cross multiply
   159,745x = 220,448.10 × 89,089
4. Step 4: Simplify right side
   159,745x = 19,639,500,780.90
5. Step 5: Solve for x
   x = 19,639,500,780.90/159,745
6. Step 6: Final answer
   x = 122,942.82