Finding the Fourth Proportional to 161,105.39, 222,302.00 and 89,486.03

Step by Step Solution

1. Step 1: Write the proportion equation
   161,105.39 : 222,302.00 = 89,486.03 : x
2. Step 2: Convert to fraction form
   161,105.39/222,302.00 = 89,486.03/x
3. Step 3: Cross multiply
   161,105.39x = 222,302.00 × 89,486.03
4. Step 4: Simplify right side
   161,105.39x = 19,892,922,993.63
5. Step 5: Solve for x
   x = 19,892,922,993.63/161,105.39
6. Step 6: Final answer
   x = 123,477.70