Finding the Fourth Proportional to 16,308.98, 24,459.81 and 7,980.63

Step by Step Solution

1. Step 1: Write the proportion equation
   16,308.98 : 24,459.81 = 7,980.63 : x
2. Step 2: Convert to fraction form
   16,308.98/24,459.81 = 7,980.63/x
3. Step 3: Cross multiply
   16,308.98x = 24,459.81 × 7,980.63
4. Step 4: Simplify right side
   16,308.98x = 195,204,571.83
5. Step 5: Solve for x
   x = 195,204,571.83/16,308.98
6. Step 6: Final answer
   x = 11,969.15