Finding the Fourth Proportional to 28,568.39, 39,419.69 and 17,950.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,568.39 : 39,419.69 = 17,950.50 : x
2. Step 2: Convert to fraction form
   28,568.39/39,419.69 = 17,950.50/x
3. Step 3: Cross multiply
   28,568.39x = 39,419.69 × 17,950.50
4. Step 4: Simplify right side
   28,568.39x = 707,603,055.59
5. Step 5: Solve for x
   x = 707,603,055.59/28,568.39
6. Step 6: Final answer
   x = 24,768.75