Finding the Fourth Proportional to 15.98, 24.00 and 15.55

Step by Step Solution

1. Step 1: Write the proportion equation
   15.98 : 24.00 = 15.55 : x
2. Step 2: Convert to fraction form
   15.98/24.00 = 15.55/x
3. Step 3: Cross multiply
   15.98x = 24.00 × 15.55
4. Step 4: Simplify right side
   15.98x = 373.10
5. Step 5: Solve for x
   x = 373.10/15.98
6. Step 6: Final answer
   x = 23.35