Finding the Fourth Proportional to 19,016.59, 26,234.16 and 12,304.40

Step by Step Solution

1. Step 1: Write the proportion equation
   19,016.59 : 26,234.16 = 12,304.40 : x
2. Step 2: Convert to fraction form
   19,016.59/26,234.16 = 12,304.40/x
3. Step 3: Cross multiply
   19,016.59x = 26,234.16 × 12,304.40
4. Step 4: Simplify right side
   19,016.59x = 322,795,663.89
5. Step 5: Solve for x
   x = 322,795,663.89/19,016.59
6. Step 6: Final answer
   x = 16,974.43