Finding the Fourth Proportional to 11.18, 15.43 and 7.29

Step by Step Solution

1. Step 1: Write the proportion equation
   11.18 : 15.43 = 7.29 : x
2. Step 2: Convert to fraction form
   11.18/15.43 = 7.29/x
3. Step 3: Cross multiply
   11.18x = 15.43 × 7.29
4. Step 4: Simplify right side
   11.18x = 112.47
5. Step 5: Solve for x
   x = 112.47/11.18
6. Step 6: Final answer
   x = 10.06