Finding the Fourth Proportional to 28,567.69, 39,423.41 and 17,389.69

Step by Step Solution

1. Step 1: Write the proportion equation
   28,567.69 : 39,423.41 = 17,389.69 : x
2. Step 2: Convert to fraction form
   28,567.69/39,423.41 = 17,389.69/x
3. Step 3: Cross multiply
   28,567.69x = 39,423.41 × 17,389.69
4. Step 4: Simplify right side
   28,567.69x = 685,560,758.35
5. Step 5: Solve for x
   x = 685,560,758.35/28,567.69
6. Step 6: Final answer
   x = 23,997.77