Finding the Fourth Proportional to 11,005.26, 16,488.72 and 9,168.18

Step by Step Solution

1. Step 1: Write the proportion equation
   11,005.26 : 16,488.72 = 9,168.18 : x
2. Step 2: Convert to fraction form
   11,005.26/16,488.72 = 9,168.18/x
3. Step 3: Cross multiply
   11,005.26x = 16,488.72 × 9,168.18
4. Step 4: Simplify right side
   11,005.26x = 151,171,552.93
5. Step 5: Solve for x
   x = 151,171,552.93/11,005.26
6. Step 6: Final answer
   x = 13,736.30