Finding the Fourth Proportional to 11,042.10, 16,565.16 and 7,097.28

Step by Step Solution

1. Step 1: Write the proportion equation
   11,042.10 : 16,565.16 = 7,097.28 : x
2. Step 2: Convert to fraction form
   11,042.10/16,565.16 = 7,097.28/x
3. Step 3: Cross multiply
   11,042.10x = 16,565.16 × 7,097.28
4. Step 4: Simplify right side
   11,042.10x = 117,567,578.76
5. Step 5: Solve for x
   x = 117,567,578.76/11,042.10
6. Step 6: Final answer
   x = 10,647.21