Finding the Fourth Proportional to 161,060.72, 222,266.78 and 89,447.41

Step by Step Solution

1. Step 1: Write the proportion equation
   161,060.72 : 222,266.78 = 89,447.41 : x
2. Step 2: Convert to fraction form
   161,060.72/222,266.78 = 89,447.41/x
3. Step 3: Cross multiply
   161,060.72x = 222,266.78 × 89,447.41
4. Step 4: Simplify right side
   161,060.72x = 19,881,187,800.04
5. Step 5: Solve for x
   x = 19,881,187,800.04/161,060.72
6. Step 6: Final answer
   x = 123,439.08