Finding the Fourth Proportional to 11,136.10, 15,360.42 and 7,162.24

Step by Step Solution

1. Step 1: Write the proportion equation
   11,136.10 : 15,360.42 = 7,162.24 : x
2. Step 2: Convert to fraction form
   11,136.10/15,360.42 = 7,162.24/x
3. Step 3: Cross multiply
   11,136.10x = 15,360.42 × 7,162.24
4. Step 4: Simplify right side
   11,136.10x = 110,015,014.54
5. Step 5: Solve for x
   x = 110,015,014.54/11,136.10
6. Step 6: Final answer
   x = 9,879.13