Finding the Fourth Proportional to 12,436.50, 18,662.07 and 5,511.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,436.50 : 18,662.07 = 5,511.06 : x
2. Step 2: Convert to fraction form
   12,436.50/18,662.07 = 5,511.06/x
3. Step 3: Cross multiply
   12,436.50x = 18,662.07 × 5,511.06
4. Step 4: Simplify right side
   12,436.50x = 102,847,787.49
5. Step 5: Solve for x
   x = 102,847,787.49/12,436.50
6. Step 6: Final answer
   x = 8,269.83