Finding the Fourth Proportional to 160,839.33, 221,984.89 and 89,242.41

Step by Step Solution

1. Step 1: Write the proportion equation
   160,839.33 : 221,984.89 = 89,242.41 : x
2. Step 2: Convert to fraction form
   160,839.33/221,984.89 = 89,242.41/x
3. Step 3: Cross multiply
   160,839.33x = 221,984.89 × 89,242.41
4. Step 4: Simplify right side
   160,839.33x = 19,810,466,899.04
5. Step 5: Solve for x
   x = 19,810,466,899.04/160,839.33
6. Step 6: Final answer
   x = 123,169.30