Finding the Fourth Proportional to 16,284.58, 24,430.72 and 12,965.38

Step by Step Solution

1. Step 1: Write the proportion equation
   16,284.58 : 24,430.72 = 12,965.38 : x
2. Step 2: Convert to fraction form
   16,284.58/24,430.72 = 12,965.38/x
3. Step 3: Cross multiply
   16,284.58x = 24,430.72 × 12,965.38
4. Step 4: Simplify right side
   16,284.58x = 316,753,568.47
5. Step 5: Solve for x
   x = 316,753,568.47/16,284.58
6. Step 6: Final answer
   x = 19,451.14