Finding the Fourth Proportional to 161,620.72, 222,929.72 and 101,086.27

Step by Step Solution

1. Step 1: Write the proportion equation
   161,620.72 : 222,929.72 = 101,086.27 : x
2. Step 2: Convert to fraction form
   161,620.72/222,929.72 = 101,086.27/x
3. Step 3: Cross multiply
   161,620.72x = 222,929.72 × 101,086.27
4. Step 4: Simplify right side
   161,620.72x = 22,535,133,183.26
5. Step 5: Solve for x
   x = 22,535,133,183.26/161,620.72
6. Step 6: Final answer
   x = 139,432.21