Finding the Fourth Proportional to 23,021.62, 31,767.62 and 14,078.15

Step by Step Solution

1. Step 1: Write the proportion equation
   23,021.62 : 31,767.62 = 14,078.15 : x
2. Step 2: Convert to fraction form
   23,021.62/31,767.62 = 14,078.15/x
3. Step 3: Cross multiply
   23,021.62x = 31,767.62 × 14,078.15
4. Step 4: Simplify right side
   23,021.62x = 447,229,427.69
5. Step 5: Solve for x
   x = 447,229,427.69/23,021.62
6. Step 6: Final answer
   x = 19,426.50