Finding the Fourth Proportional to 11,162.88, 16,717.59 and 7,245.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,162.88 : 16,717.59 = 7,245.72 : x
2. Step 2: Convert to fraction form
   11,162.88/16,717.59 = 7,245.72/x
3. Step 3: Cross multiply
   11,162.88x = 16,717.59 × 7,245.72
4. Step 4: Simplify right side
   11,162.88x = 121,130,976.21
5. Step 5: Solve for x
   x = 121,130,976.21/11,162.88
6. Step 6: Final answer
   x = 10,851.23