Finding the Fourth Proportional to 161,185.98, 222,438.87 and 89,564.70

Step by Step Solution

1. Step 1: Write the proportion equation
   161,185.98 : 222,438.87 = 89,564.70 : x
2. Step 2: Convert to fraction form
   161,185.98/222,438.87 = 89,564.70/x
3. Step 3: Cross multiply
   161,185.98x = 222,438.87 × 89,564.70
4. Step 4: Simplify right side
   161,185.98x = 19,922,670,659.89
5. Step 5: Solve for x
   x = 19,922,670,659.89/161,185.98
6. Step 6: Final answer
   x = 123,600.52