Finding the Fourth Proportional to 161,196.21, 222,456.38 and 89,579.25

Step by Step Solution

1. Step 1: Write the proportion equation
   161,196.21 : 222,456.38 = 89,579.25 : x
2. Step 2: Convert to fraction form
   161,196.21/222,456.38 = 89,579.25/x
3. Step 3: Cross multiply
   161,196.21x = 222,456.38 × 89,579.25
4. Step 4: Simplify right side
   161,196.21x = 19,927,475,230.22
5. Step 5: Solve for x
   x = 19,927,475,230.22/161,196.21
6. Step 6: Final answer
   x = 123,622.48