Finding the Fourth Proportional to 16,758.39, 25,137.20 and 8,436.17

Step by Step Solution

1. Step 1: Write the proportion equation
   16,758.39 : 25,137.20 = 8,436.17 : x
2. Step 2: Convert to fraction form
   16,758.39/25,137.20 = 8,436.17/x
3. Step 3: Cross multiply
   16,758.39x = 25,137.20 × 8,436.17
4. Step 4: Simplify right side
   16,758.39x = 212,061,639.15
5. Step 5: Solve for x
   x = 212,061,639.15/16,758.39
6. Step 6: Final answer
   x = 12,654.06