Finding the Fourth Proportional to 11.61, 16.01 and 10.52

Step by Step Solution

1. Step 1: Write the proportion equation
   11.61 : 16.01 = 10.52 : x
2. Step 2: Convert to fraction form
   11.61/16.01 = 10.52/x
3. Step 3: Cross multiply
   11.61x = 16.01 × 10.52
4. Step 4: Simplify right side
   11.61x = 168.29
5. Step 5: Solve for x
   x = 168.29/11.61
6. Step 6: Final answer
   x = 14.50