Finding the Fourth Proportional to 17,686.99, 24,404.79 and 10,519.30

Step by Step Solution

1. Step 1: Write the proportion equation
   17,686.99 : 24,404.79 = 10,519.30 : x
2. Step 2: Convert to fraction form
   17,686.99/24,404.79 = 10,519.30/x
3. Step 3: Cross multiply
   17,686.99x = 24,404.79 × 10,519.30
4. Step 4: Simplify right side
   17,686.99x = 256,721,307.45
5. Step 5: Solve for x
   x = 256,721,307.45/17,686.99
6. Step 6: Final answer
   x = 14,514.70