Finding the Fourth Proportional to 16,826.94, 25,218.54 and 16,564.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,826.94 : 25,218.54 = 16,564.50 : x
2. Step 2: Convert to fraction form
   16,826.94/25,218.54 = 16,564.50/x
3. Step 3: Cross multiply
   16,826.94x = 25,218.54 × 16,564.50
4. Step 4: Simplify right side
   16,826.94x = 417,732,505.83
5. Step 5: Solve for x
   x = 417,732,505.83/16,826.94
6. Step 6: Final answer
   x = 24,825.22