Finding the Fourth Proportional to 11,404.83, 17,090.96 and 5,149.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,404.83 : 17,090.96 = 5,149.31 : x
2. Step 2: Convert to fraction form
   11,404.83/17,090.96 = 5,149.31/x
3. Step 3: Cross multiply
   11,404.83x = 17,090.96 × 5,149.31
4. Step 4: Simplify right side
   11,404.83x = 88,006,540.04
5. Step 5: Solve for x
   x = 88,006,540.04/11,404.83
6. Step 6: Final answer
   x = 7,716.60