Finding the Fourth Proportional to 16,404.60, 24,612.48 and 5,311.74

Step by Step Solution

1. Step 1: Write the proportion equation
   16,404.60 : 24,612.48 = 5,311.74 : x
2. Step 2: Convert to fraction form
   16,404.60/24,612.48 = 5,311.74/x
3. Step 3: Cross multiply
   16,404.60x = 24,612.48 × 5,311.74
4. Step 4: Simplify right side
   16,404.60x = 130,735,094.52
5. Step 5: Solve for x
   x = 130,735,094.52/16,404.60
6. Step 6: Final answer
   x = 7,969.42