Finding the Fourth Proportional to 23,715.10, 32,727.50 and 13,105.42

Step by Step Solution

1. Step 1: Write the proportion equation
   23,715.10 : 32,727.50 = 13,105.42 : x
2. Step 2: Convert to fraction form
   23,715.10/32,727.50 = 13,105.42/x
3. Step 3: Cross multiply
   23,715.10x = 32,727.50 × 13,105.42
4. Step 4: Simplify right side
   23,715.10x = 428,907,633.05
5. Step 5: Solve for x
   x = 428,907,633.05/23,715.10
6. Step 6: Final answer
   x = 18,085.85