Finding the Fourth Proportional to 16,936.74, 25,420.59 and 8,622.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,936.74 : 25,420.59 = 8,622.50 : x
2. Step 2: Convert to fraction form
   16,936.74/25,420.59 = 8,622.50/x
3. Step 3: Cross multiply
   16,936.74x = 25,420.59 × 8,622.50
4. Step 4: Simplify right side
   16,936.74x = 219,188,910.17
5. Step 5: Solve for x
   x = 219,188,910.17/16,936.74
6. Step 6: Final answer
   x = 12,941.62