Finding the Fourth Proportional to 17,610.72, 26,413.59 and 6,515.55

Step by Step Solution

1. Step 1: Write the proportion equation
   17,610.72 : 26,413.59 = 6,515.55 : x
2. Step 2: Convert to fraction form
   17,610.72/26,413.59 = 6,515.55/x
3. Step 3: Cross multiply
   17,610.72x = 26,413.59 × 6,515.55
4. Step 4: Simplify right side
   17,610.72x = 172,099,066.32
5. Step 5: Solve for x
   x = 172,099,066.32/17,610.72
6. Step 6: Final answer
   x = 9,772.40