Finding the Fourth Proportional to 12,662.82, 18,993.69 and 3,897.36

Step by Step Solution

1. Step 1: Write the proportion equation
   12,662.82 : 18,993.69 = 3,897.36 : x
2. Step 2: Convert to fraction form
   12,662.82/18,993.69 = 3,897.36/x
3. Step 3: Cross multiply
   12,662.82x = 18,993.69 × 3,897.36
4. Step 4: Simplify right side
   12,662.82x = 74,025,247.66
5. Step 5: Solve for x
   x = 74,025,247.66/12,662.82
6. Step 6: Final answer
   x = 5,845.87