Finding the Fourth Proportional to 123.36, 185.16 and 59.28

Step by Step Solution

1. Step 1: Write the proportion equation
   123.36 : 185.16 = 59.28 : x
2. Step 2: Convert to fraction form
   123.36/185.16 = 59.28/x
3. Step 3: Cross multiply
   123.36x = 185.16 × 59.28
4. Step 4: Simplify right side
   123.36x = 10,976.28
5. Step 5: Solve for x
   x = 10,976.28/123.36
6. Step 6: Final answer
   x = 88.98