Finding the Fourth Proportional to 164.42, 246.31 and 123.89

Step by Step Solution

1. Step 1: Write the proportion equation
   164.42 : 246.31 = 123.89 : x
2. Step 2: Convert to fraction form
   164.42/246.31 = 123.89/x
3. Step 3: Cross multiply
   164.42x = 246.31 × 123.89
4. Step 4: Simplify right side
   164.42x = 30,513.80
5. Step 5: Solve for x
   x = 30,513.80/164.42
6. Step 6: Final answer
   x = 185.59