Finding the Fourth Proportional to 17,496.74, 26,215.89 and 12,293.30

Step by Step Solution

1. Step 1: Write the proportion equation
   17,496.74 : 26,215.89 = 12,293.30 : x
2. Step 2: Convert to fraction form
   17,496.74/26,215.89 = 12,293.30/x
3. Step 3: Cross multiply
   17,496.74x = 26,215.89 × 12,293.30
4. Step 4: Simplify right side
   17,496.74x = 322,279,800.54
5. Step 5: Solve for x
   x = 322,279,800.54/17,496.74
6. Step 6: Final answer
   x = 18,419.42