Finding the Fourth Proportional to 23,399.51, 32,291.34 and 12,789.14

Step by Step Solution

1. Step 1: Write the proportion equation
   23,399.51 : 32,291.34 = 12,789.14 : x
2. Step 2: Convert to fraction form
   23,399.51/32,291.34 = 12,789.14/x
3. Step 3: Cross multiply
   23,399.51x = 32,291.34 × 12,789.14
4. Step 4: Simplify right side
   23,399.51x = 412,978,468.05
5. Step 5: Solve for x
   x = 412,978,468.05/23,399.51
6. Step 6: Final answer
   x = 17,649.02