Finding the Fourth Proportional to 23,016.79, 34,530.24 and 13,665.34

Step by Step Solution

1. Step 1: Write the proportion equation
   23,016.79 : 34,530.24 = 13,665.34 : x
2. Step 2: Convert to fraction form
   23,016.79/34,530.24 = 13,665.34/x
3. Step 3: Cross multiply
   23,016.79x = 34,530.24 × 13,665.34
4. Step 4: Simplify right side
   23,016.79x = 471,867,297.23
5. Step 5: Solve for x
   x = 471,867,297.23/23,016.79
6. Step 6: Final answer
   x = 20,501.01