Finding the Fourth Proportional to 160,729.22, 221,801.46 and 89,105.06

Step by Step Solution

1. Step 1: Write the proportion equation
   160,729.22 : 221,801.46 = 89,105.06 : x
2. Step 2: Convert to fraction form
   160,729.22/221,801.46 = 89,105.06/x
3. Step 3: Cross multiply
   160,729.22x = 221,801.46 × 89,105.06
4. Step 4: Simplify right side
   160,729.22x = 19,763,632,401.39
5. Step 5: Solve for x
   x = 19,763,632,401.39/160,729.22
6. Step 6: Final answer
   x = 122,962.29