Finding the Fourth Proportional to 17,459.36, 25,991.60 and 17,355.59

Step by Step Solution

1. Step 1: Write the proportion equation
   17,459.36 : 25,991.60 = 17,355.59 : x
2. Step 2: Convert to fraction form
   17,459.36/25,991.60 = 17,355.59/x
3. Step 3: Cross multiply
   17,459.36x = 25,991.60 × 17,355.59
4. Step 4: Simplify right side
   17,459.36x = 451,099,553.04
5. Step 5: Solve for x
   x = 451,099,553.04/17,459.36
6. Step 6: Final answer
   x = 25,837.12