Finding the Fourth Proportional to 17,196.11, 25,789.17 and 6,663.79

Step by Step Solution

1. Step 1: Write the proportion equation
   17,196.11 : 25,789.17 = 6,663.79 : x
2. Step 2: Convert to fraction form
   17,196.11/25,789.17 = 6,663.79/x
3. Step 3: Cross multiply
   17,196.11x = 25,789.17 × 6,663.79
4. Step 4: Simplify right side
   17,196.11x = 171,853,487.83
5. Step 5: Solve for x
   x = 171,853,487.83/17,196.11
6. Step 6: Final answer
   x = 9,993.74