Finding the Fourth Proportional to 23,399.18, 35,105.29 and 13,018.22

Step by Step Solution

1. Step 1: Write the proportion equation
   23,399.18 : 35,105.29 = 13,018.22 : x
2. Step 2: Convert to fraction form
   23,399.18/35,105.29 = 13,018.22/x
3. Step 3: Cross multiply
   23,399.18x = 35,105.29 × 13,018.22
4. Step 4: Simplify right side
   23,399.18x = 457,008,388.38
5. Step 5: Solve for x
   x = 457,008,388.38/23,399.18
6. Step 6: Final answer
   x = 19,530.96