Finding the Fourth Proportional to 123.32, 185.01 and 103.18

Step by Step Solution

1. Step 1: Write the proportion equation
   123.32 : 185.01 = 103.18 : x
2. Step 2: Convert to fraction form
   123.32/185.01 = 103.18/x
3. Step 3: Cross multiply
   123.32x = 185.01 × 103.18
4. Step 4: Simplify right side
   123.32x = 19,088.63
5. Step 5: Solve for x
   x = 19,088.63/123.32
6. Step 6: Final answer
   x = 154.78