Finding the Fourth Proportional to 161,429.97, 222,776.34 and 89,816.67

Step by Step Solution

1. Step 1: Write the proportion equation
   161,429.97 : 222,776.34 = 89,816.67 : x
2. Step 2: Convert to fraction form
   161,429.97/222,776.34 = 89,816.67/x
3. Step 3: Cross multiply
   161,429.97x = 222,776.34 × 89,816.67
4. Step 4: Simplify right side
   161,429.97x = 20,009,029,013.59
5. Step 5: Solve for x
   x = 20,009,029,013.59/161,429.97
6. Step 6: Final answer
   x = 123,948.66