Finding the Fourth Proportional to 161,283.69, 222,558.89 and 89,659.35

Step by Step Solution

1. Step 1: Write the proportion equation
   161,283.69 : 222,558.89 = 89,659.35 : x
2. Step 2: Convert to fraction form
   161,283.69/222,558.89 = 89,659.35/x
3. Step 3: Cross multiply
   161,283.69x = 222,558.89 × 89,659.35
4. Step 4: Simplify right side
   161,283.69x = 19,954,484,965.82
5. Step 5: Solve for x
   x = 19,954,484,965.82/161,283.69
6. Step 6: Final answer
   x = 123,722.89