Finding the Fourth Proportional to 11,419.88, 17,139.56 and 4,499.24

Step by Step Solution

1. Step 1: Write the proportion equation
   11,419.88 : 17,139.56 = 4,499.24 : x
2. Step 2: Convert to fraction form
   11,419.88/17,139.56 = 4,499.24/x
3. Step 3: Cross multiply
   11,419.88x = 17,139.56 × 4,499.24
4. Step 4: Simplify right side
   11,419.88x = 77,114,993.93
5. Step 5: Solve for x
   x = 77,114,993.93/11,419.88
6. Step 6: Final answer
   x = 6,752.70