Finding the Fourth Proportional to 17,274.98, 23,839.10 and 9,618.21

Step by Step Solution

1. Step 1: Write the proportion equation
   17,274.98 : 23,839.10 = 9,618.21 : x
2. Step 2: Convert to fraction form
   17,274.98/23,839.10 = 9,618.21/x
3. Step 3: Cross multiply
   17,274.98x = 23,839.10 × 9,618.21
4. Step 4: Simplify right side
   17,274.98x = 229,289,343.89
5. Step 5: Solve for x
   x = 229,289,343.89/17,274.98
6. Step 6: Final answer
   x = 13,272.91