Finding the Fourth Proportional to 11,399.69, 17,093.88 and 3,500.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,399.69 : 17,093.88 = 3,500.31 : x
2. Step 2: Convert to fraction form
   11,399.69/17,093.88 = 3,500.31/x
3. Step 3: Cross multiply
   11,399.69x = 17,093.88 × 3,500.31
4. Step 4: Simplify right side
   11,399.69x = 59,833,879.10
5. Step 5: Solve for x
   x = 59,833,879.10/11,399.69
6. Step 6: Final answer
   x = 5,248.73