Finding the Fourth Proportional to 16,404.40, 24,607.36 and 5,311.96

Step by Step Solution

1. Step 1: Write the proportion equation
   16,404.40 : 24,607.36 = 5,311.96 : x
2. Step 2: Convert to fraction form
   16,404.40/24,607.36 = 5,311.96/x
3. Step 3: Cross multiply
   16,404.40x = 24,607.36 × 5,311.96
4. Step 4: Simplify right side
   16,404.40x = 130,713,237.23
5. Step 5: Solve for x
   x = 130,713,237.23/16,404.40
6. Step 6: Final answer
   x = 7,968.18