Finding the Fourth Proportional to 17,587.78, 24,270.95 and 9,521.25

Step by Step Solution

1. Step 1: Write the proportion equation
   17,587.78 : 24,270.95 = 9,521.25 : x
2. Step 2: Convert to fraction form
   17,587.78/24,270.95 = 9,521.25/x
3. Step 3: Cross multiply
   17,587.78x = 24,270.95 × 9,521.25
4. Step 4: Simplify right side
   17,587.78x = 231,089,801.12
5. Step 5: Solve for x
   x = 231,089,801.12/17,587.78
6. Step 6: Final answer
   x = 13,139.23