Finding the Fourth Proportional to 17,145.58, 25,716.48 and 5,459.71

Step by Step Solution

1. Step 1: Write the proportion equation
   17,145.58 : 25,716.48 = 5,459.71 : x
2. Step 2: Convert to fraction form
   17,145.58/25,716.48 = 5,459.71/x
3. Step 3: Cross multiply
   17,145.58x = 25,716.48 × 5,459.71
4. Step 4: Simplify right side
   17,145.58x = 140,404,523.02
5. Step 5: Solve for x
   x = 140,404,523.02/17,145.58
6. Step 6: Final answer
   x = 8,188.96