Finding the Fourth Proportional to 16,979.34, 25,435.92 and 11,118.18

Step by Step Solution

1. Step 1: Write the proportion equation
   16,979.34 : 25,435.92 = 11,118.18 : x
2. Step 2: Convert to fraction form
   16,979.34/25,435.92 = 11,118.18/x
3. Step 3: Cross multiply
   16,979.34x = 25,435.92 × 11,118.18
4. Step 4: Simplify right side
   16,979.34x = 282,801,137.03
5. Step 5: Solve for x
   x = 282,801,137.03/16,979.34
6. Step 6: Final answer
   x = 16,655.60