Finding the Fourth Proportional to 16,969.60, 25,426.56 and 16,321.60

Step by Step Solution

1. Step 1: Write the proportion equation
   16,969.60 : 25,426.56 = 16,321.60 : x
2. Step 2: Convert to fraction form
   16,969.60/25,426.56 = 16,321.60/x
3. Step 3: Cross multiply
   16,969.60x = 25,426.56 × 16,321.60
4. Step 4: Simplify right side
   16,969.60x = 415,002,141.70
5. Step 5: Solve for x
   x = 415,002,141.70/16,969.60
6. Step 6: Final answer
   x = 24,455.62