Finding the Fourth Proportional to 17,086.42, 23,578.72 and 10,017.55

Step by Step Solution

1. Step 1: Write the proportion equation
   17,086.42 : 23,578.72 = 10,017.55 : x
2. Step 2: Convert to fraction form
   17,086.42/23,578.72 = 10,017.55/x
3. Step 3: Cross multiply
   17,086.42x = 23,578.72 × 10,017.55
4. Step 4: Simplify right side
   17,086.42x = 236,201,006.54
5. Step 5: Solve for x
   x = 236,201,006.54/17,086.42
6. Step 6: Final answer
   x = 13,823.90