Finding the Fourth Proportional to 123.04, 168.89 and 112.06

Step by Step Solution

1. Step 1: Write the proportion equation
   123.04 : 168.89 = 112.06 : x
2. Step 2: Convert to fraction form
   123.04/168.89 = 112.06/x
3. Step 3: Cross multiply
   123.04x = 168.89 × 112.06
4. Step 4: Simplify right side
   123.04x = 18,925.81
5. Step 5: Solve for x
   x = 18,925.81/123.04
6. Step 6: Final answer
   x = 153.82