Finding the Fourth Proportional to 17,328.50, 23,915.67 and 9,776.38

Step by Step Solution

1. Step 1: Write the proportion equation
   17,328.50 : 23,915.67 = 9,776.38 : x
2. Step 2: Convert to fraction form
   17,328.50/23,915.67 = 9,776.38/x
3. Step 3: Cross multiply
   17,328.50x = 23,915.67 × 9,776.38
4. Step 4: Simplify right side
   17,328.50x = 233,808,677.87
5. Step 5: Solve for x
   x = 233,808,677.87/17,328.50
6. Step 6: Final answer
   x = 13,492.72