Finding the Fourth Proportional to 16,308.42, 24,454.71 and 7,978.68

Step by Step Solution

1. Step 1: Write the proportion equation
   16,308.42 : 24,454.71 = 7,978.68 : x
2. Step 2: Convert to fraction form
   16,308.42/24,454.71 = 7,978.68/x
3. Step 3: Cross multiply
   16,308.42x = 24,454.71 × 7,978.68
4. Step 4: Simplify right side
   16,308.42x = 195,116,305.58
5. Step 5: Solve for x
   x = 195,116,305.58/16,308.42
6. Step 6: Final answer
   x = 11,964.15