Finding the Fourth Proportional to 23,863.69, 35,786.53 and 19,172.17

Step by Step Solution

1. Step 1: Write the proportion equation
   23,863.69 : 35,786.53 = 19,172.17 : x
2. Step 2: Convert to fraction form
   23,863.69/35,786.53 = 19,172.17/x
3. Step 3: Cross multiply
   23,863.69x = 35,786.53 × 19,172.17
4. Step 4: Simplify right side
   23,863.69x = 686,105,299.47
5. Step 5: Solve for x
   x = 686,105,299.47/23,863.69
6. Step 6: Final answer
   x = 28,751.02