Finding the Fourth Proportional to 16,935.98, 25,419.56 and 8,621.94

Step by Step Solution

1. Step 1: Write the proportion equation
   16,935.98 : 25,419.56 = 8,621.94 : x
2. Step 2: Convert to fraction form
   16,935.98/25,419.56 = 8,621.94/x
3. Step 3: Cross multiply
   16,935.98x = 25,419.56 × 8,621.94
4. Step 4: Simplify right side
   16,935.98x = 219,165,921.15
5. Step 5: Solve for x
   x = 219,165,921.15/16,935.98
6. Step 6: Final answer
   x = 12,940.85