Finding the Fourth Proportional to 17,496.99, 26,216.27 and 12,293.55

Step by Step Solution

1. Step 1: Write the proportion equation
   17,496.99 : 26,216.27 = 12,293.55 : x
2. Step 2: Convert to fraction form
   17,496.99/26,216.27 = 12,293.55/x
3. Step 3: Cross multiply
   17,496.99x = 26,216.27 × 12,293.55
4. Step 4: Simplify right side
   17,496.99x = 322,290,964.59
5. Step 5: Solve for x
   x = 322,290,964.59/17,496.99
6. Step 6: Final answer
   x = 18,419.79