Finding the Fourth Proportional to 11.83, 16.32 and 10.55

Step by Step Solution

1. Step 1: Write the proportion equation
   11.83 : 16.32 = 10.55 : x
2. Step 2: Convert to fraction form
   11.83/16.32 = 10.55/x
3. Step 3: Cross multiply
   11.83x = 16.32 × 10.55
4. Step 4: Simplify right side
   11.83x = 172.17
5. Step 5: Solve for x
   x = 172.17/11.83
6. Step 6: Final answer
   x = 14.55