Finding the Fourth Proportional to 23,716.31, 32,728.89 and 13,105.94

Step by Step Solution

1. Step 1: Write the proportion equation
   23,716.31 : 32,728.89 = 13,105.94 : x
2. Step 2: Convert to fraction form
   23,716.31/32,728.89 = 13,105.94/x
3. Step 3: Cross multiply
   23,716.31x = 32,728.89 × 13,105.94
4. Step 4: Simplify right side
   23,716.31x = 428,942,868.61
5. Step 5: Solve for x
   x = 428,942,868.61/23,716.31
6. Step 6: Final answer
   x = 18,086.41