Finding the Fourth Proportional to 11.36, 15.59 and 10.70

Step by Step Solution

1. Step 1: Write the proportion equation
   11.36 : 15.59 = 10.70 : x
2. Step 2: Convert to fraction form
   11.36/15.59 = 10.70/x
3. Step 3: Cross multiply
   11.36x = 15.59 × 10.70
4. Step 4: Simplify right side
   11.36x = 166.82
5. Step 5: Solve for x
   x = 166.82/11.36
6. Step 6: Final answer
   x = 14.69