Finding the Fourth Proportional to 16,404.02, 24,609.63 and 5,311.85

Step by Step Solution

1. Step 1: Write the proportion equation
   16,404.02 : 24,609.63 = 5,311.85 : x
2. Step 2: Convert to fraction form
   16,404.02/24,609.63 = 5,311.85/x
3. Step 3: Cross multiply
   16,404.02x = 24,609.63 × 5,311.85
4. Step 4: Simplify right side
   16,404.02x = 130,722,663.12
5. Step 5: Solve for x
   x = 130,722,663.12/16,404.02
6. Step 6: Final answer
   x = 7,968.94