Finding the Fourth Proportional to 12,443.49, 18,663.15 and 3,676.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,443.49 : 18,663.15 = 3,676.32 : x
2. Step 2: Convert to fraction form
   12,443.49/18,663.15 = 3,676.32/x
3. Step 3: Cross multiply
   12,443.49x = 18,663.15 × 3,676.32
4. Step 4: Simplify right side
   12,443.49x = 68,611,711.61
5. Step 5: Solve for x
   x = 68,611,711.61/12,443.49
6. Step 6: Final answer
   x = 5,513.86