Finding the Fourth Proportional to 12,443.94, 18,659.46 and 3,677.70

Step by Step Solution

1. Step 1: Write the proportion equation
   12,443.94 : 18,659.46 = 3,677.70 : x
2. Step 2: Convert to fraction form
   12,443.94/18,659.46 = 3,677.70/x
3. Step 3: Cross multiply
   12,443.94x = 18,659.46 × 3,677.70
4. Step 4: Simplify right side
   12,443.94x = 68,623,896.04
5. Step 5: Solve for x
   x = 68,623,896.04/12,443.94
6. Step 6: Final answer
   x = 5,514.64