Finding the Fourth Proportional to 23,021.33, 34,467.69 and 12,453.56

Step by Step Solution

1. Step 1: Write the proportion equation
   23,021.33 : 34,467.69 = 12,453.56 : x
2. Step 2: Convert to fraction form
   23,021.33/34,467.69 = 12,453.56/x
3. Step 3: Cross multiply
   23,021.33x = 34,467.69 × 12,453.56
4. Step 4: Simplify right side
   23,021.33x = 429,245,273.14
5. Step 5: Solve for x
   x = 429,245,273.14/23,021.33
6. Step 6: Final answer
   x = 18,645.55