Finding the Fourth Proportional to 17,128.86, 25,683.56 and 10,208.22

Step by Step Solution

1. Step 1: Write the proportion equation
   17,128.86 : 25,683.56 = 10,208.22 : x
2. Step 2: Convert to fraction form
   17,128.86/25,683.56 = 10,208.22/x
3. Step 3: Cross multiply
   17,128.86x = 25,683.56 × 10,208.22
4. Step 4: Simplify right side
   17,128.86x = 262,183,430.86
5. Step 5: Solve for x
   x = 262,183,430.86/17,128.86
6. Step 6: Final answer
   x = 15,306.53