Finding the Fourth Proportional to 23,417.69, 32,315.90 and 12,807.30

Step by Step Solution

1. Step 1: Write the proportion equation
   23,417.69 : 32,315.90 = 12,807.30 : x
2. Step 2: Convert to fraction form
   23,417.69/32,315.90 = 12,807.30/x
3. Step 3: Cross multiply
   23,417.69x = 32,315.90 × 12,807.30
4. Step 4: Simplify right side
   23,417.69x = 413,879,362.03
5. Step 5: Solve for x
   x = 413,879,362.03/23,417.69
6. Step 6: Final answer
   x = 17,673.79