Finding the Fourth Proportional to 16,314.45, 24,469.58 and 5,220.21

Step by Step Solution

1. Step 1: Write the proportion equation
   16,314.45 : 24,469.58 = 5,220.21 : x
2. Step 2: Convert to fraction form
   16,314.45/24,469.58 = 5,220.21/x
3. Step 3: Cross multiply
   16,314.45x = 24,469.58 × 5,220.21
4. Step 4: Simplify right side
   16,314.45x = 127,736,223.86
5. Step 5: Solve for x
   x = 127,736,223.86/16,314.45
6. Step 6: Final answer
   x = 7,829.64