Finding the Fourth Proportional to 16,404.71, 24,610.97 and 5,311.40

Step by Step Solution

1. Step 1: Write the proportion equation
   16,404.71 : 24,610.97 = 5,311.40 : x
2. Step 2: Convert to fraction form
   16,404.71/24,610.97 = 5,311.40/x
3. Step 3: Cross multiply
   16,404.71x = 24,610.97 × 5,311.40
4. Step 4: Simplify right side
   16,404.71x = 130,718,706.06
5. Step 5: Solve for x
   x = 130,718,706.06/16,404.71
6. Step 6: Final answer
   x = 7,968.36