Finding the Fourth Proportional to 161,013.06, 222,157.98 and 89,375.16

Step by Step Solution

1. Step 1: Write the proportion equation
   161,013.06 : 222,157.98 = 89,375.16 : x
2. Step 2: Convert to fraction form
   161,013.06/222,157.98 = 89,375.16/x
3. Step 3: Cross multiply
   161,013.06x = 222,157.98 × 89,375.16
4. Step 4: Simplify right side
   161,013.06x = 19,855,405,007.78
5. Step 5: Solve for x
   x = 19,855,405,007.78/161,013.06
6. Step 6: Final answer
   x = 123,315.49