Finding the Fourth Proportional to 16,419.98, 24,629.60 and 5,326.70

Step by Step Solution

1. Step 1: Write the proportion equation
   16,419.98 : 24,629.60 = 5,326.70 : x
2. Step 2: Convert to fraction form
   16,419.98/24,629.60 = 5,326.70/x
3. Step 3: Cross multiply
   16,419.98x = 24,629.60 × 5,326.70
4. Step 4: Simplify right side
   16,419.98x = 131,194,380.49
5. Step 5: Solve for x
   x = 131,194,380.49/16,419.98
6. Step 6: Final answer
   x = 7,989.92