Finding the Fourth Proportional to 17,249.98, 25,866.78 and 7,887.22

Step by Step Solution

1. Step 1: Write the proportion equation
   17,249.98 : 25,866.78 = 7,887.22 : x
2. Step 2: Convert to fraction form
   17,249.98/25,866.78 = 7,887.22/x
3. Step 3: Cross multiply
   17,249.98x = 25,866.78 × 7,887.22
4. Step 4: Simplify right side
   17,249.98x = 204,016,984.55
5. Step 5: Solve for x
   x = 204,016,984.55/17,249.98
6. Step 6: Final answer
   x = 11,827.09