Finding the Fourth Proportional to 17,144.94, 25,699.77 and 7,791.47

Step by Step Solution

1. Step 1: Write the proportion equation
   17,144.94 : 25,699.77 = 7,791.47 : x
2. Step 2: Convert to fraction form
   17,144.94/25,699.77 = 7,791.47/x
3. Step 3: Cross multiply
   17,144.94x = 25,699.77 × 7,791.47
4. Step 4: Simplify right side
   17,144.94x = 200,238,858.46
5. Step 5: Solve for x
   x = 200,238,858.46/17,144.94
6. Step 6: Final answer
   x = 11,679.18