Finding the Fourth Proportional to 17,128.22, 25,629.84 and 10,111.59

Step by Step Solution

1. Step 1: Write the proportion equation
   17,128.22 : 25,629.84 = 10,111.59 : x
2. Step 2: Convert to fraction form
   17,128.22/25,629.84 = 10,111.59/x
3. Step 3: Cross multiply
   17,128.22x = 25,629.84 × 10,111.59
4. Step 4: Simplify right side
   17,128.22x = 259,158,433.85
5. Step 5: Solve for x
   x = 259,158,433.85/17,128.22
6. Step 6: Final answer
   x = 15,130.50