Finding the Fourth Proportional to 16,983.61, 25,565.36 and 12,087.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,983.61 : 25,565.36 = 12,087.16 : x
2. Step 2: Convert to fraction form
   16,983.61/25,565.36 = 12,087.16/x
3. Step 3: Cross multiply
   16,983.61x = 25,565.36 × 12,087.16
4. Step 4: Simplify right side
   16,983.61x = 309,012,472.43
5. Step 5: Solve for x
   x = 309,012,472.43/16,983.61
6. Step 6: Final answer
   x = 18,194.75