Finding the Fourth Proportional to 16,784.88, 25,171.69 and 8,459.59

Step by Step Solution

1. Step 1: Write the proportion equation
   16,784.88 : 25,171.69 = 8,459.59 : x
2. Step 2: Convert to fraction form
   16,784.88/25,171.69 = 8,459.59/x
3. Step 3: Cross multiply
   16,784.88x = 25,171.69 × 8,459.59
4. Step 4: Simplify right side
   16,784.88x = 212,942,132.19
5. Step 5: Solve for x
   x = 212,942,132.19/16,784.88
6. Step 6: Final answer
   x = 12,686.54