Finding the Fourth Proportional to 17,209.88, 25,813.62 and 5,522.12

Step by Step Solution

1. Step 1: Write the proportion equation
   17,209.88 : 25,813.62 = 5,522.12 : x
2. Step 2: Convert to fraction form
   17,209.88/25,813.62 = 5,522.12/x
3. Step 3: Cross multiply
   17,209.88x = 25,813.62 × 5,522.12
4. Step 4: Simplify right side
   17,209.88x = 142,545,907.27
5. Step 5: Solve for x
   x = 142,545,907.27/17,209.88
6. Step 6: Final answer
   x = 8,282.79