Finding the Fourth Proportional to 17,408.36, 26,111.72 and 4,260.03

Step by Step Solution

1. Step 1: Write the proportion equation
   17,408.36 : 26,111.72 = 4,260.03 : x
2. Step 2: Convert to fraction form
   17,408.36/26,111.72 = 4,260.03/x
3. Step 3: Cross multiply
   17,408.36x = 26,111.72 × 4,260.03
4. Step 4: Simplify right side
   17,408.36x = 111,236,689.25
5. Step 5: Solve for x
   x = 111,236,689.25/17,408.36
6. Step 6: Final answer
   x = 6,389.84