Finding the Fourth Proportional to 17,515.89, 24,172.51 and 9,558.55

Step by Step Solution

1. Step 1: Write the proportion equation
   17,515.89 : 24,172.51 = 9,558.55 : x
2. Step 2: Convert to fraction form
   17,515.89/24,172.51 = 9,558.55/x
3. Step 3: Cross multiply
   17,515.89x = 24,172.51 × 9,558.55
4. Step 4: Simplify right side
   17,515.89x = 231,054,145.46
5. Step 5: Solve for x
   x = 231,054,145.46/17,515.89
6. Step 6: Final answer
   x = 13,191.12