Finding the Fourth Proportional to 23,715.72, 32,724.18 and 13,105.80

Step by Step Solution

1. Step 1: Write the proportion equation
   23,715.72 : 32,724.18 = 13,105.80 : x
2. Step 2: Convert to fraction form
   23,715.72/32,724.18 = 13,105.80/x
3. Step 3: Cross multiply
   23,715.72x = 32,724.18 × 13,105.80
4. Step 4: Simplify right side
   23,715.72x = 428,876,558.24
5. Step 5: Solve for x
   x = 428,876,558.24/23,715.72
6. Step 6: Final answer
   x = 18,084.06