Finding the Fourth Proportional to 17,456.99, 24,090.63 and 9,499.20

Step by Step Solution

1. Step 1: Write the proportion equation
   17,456.99 : 24,090.63 = 9,499.20 : x
2. Step 2: Convert to fraction form
   17,456.99/24,090.63 = 9,499.20/x
3. Step 3: Cross multiply
   17,456.99x = 24,090.63 × 9,499.20
4. Step 4: Simplify right side
   17,456.99x = 228,841,712.50
5. Step 5: Solve for x
   x = 228,841,712.50/17,456.99
6. Step 6: Final answer
   x = 13,108.89