Finding the Fourth Proportional to 16,896.67, 25,345.35 and 5,209.88

Step by Step Solution

1. Step 1: Write the proportion equation
   16,896.67 : 25,345.35 = 5,209.88 : x
2. Step 2: Convert to fraction form
   16,896.67/25,345.35 = 5,209.88/x
3. Step 3: Cross multiply
   16,896.67x = 25,345.35 × 5,209.88
4. Step 4: Simplify right side
   16,896.67x = 132,046,105.33
5. Step 5: Solve for x
   x = 132,046,105.33/16,896.67
6. Step 6: Final answer
   x = 7,814.92