Finding the Fourth Proportional to 19,017.27, 26,249.48 and 12,302.72

Step by Step Solution

1. Step 1: Write the proportion equation
   19,017.27 : 26,249.48 = 12,302.72 : x
2. Step 2: Convert to fraction form
   19,017.27/26,249.48 = 12,302.72/x
3. Step 3: Cross multiply
   19,017.27x = 26,249.48 × 12,302.72
4. Step 4: Simplify right side
   19,017.27x = 322,940,002.59
5. Step 5: Solve for x
   x = 322,940,002.59/19,017.27
6. Step 6: Final answer
   x = 16,981.41