Finding the Fourth Proportional to 11,488.26, 17,208.16 and 5,253.51

Step by Step Solution

1. Step 1: Write the proportion equation
   11,488.26 : 17,208.16 = 5,253.51 : x
2. Step 2: Convert to fraction form
   11,488.26/17,208.16 = 5,253.51/x
3. Step 3: Cross multiply
   11,488.26x = 17,208.16 × 5,253.51
4. Step 4: Simplify right side
   11,488.26x = 90,403,128.33
5. Step 5: Solve for x
   x = 90,403,128.33/11,488.26
6. Step 6: Final answer
   x = 7,869.18