Finding the Fourth Proportional to 9,243.57, 13,864.58 and 3,978.37

Step by Step Solution

1. Step 1: Write the proportion equation
   9,243.57 : 13,864.58 = 3,978.37 : x
2. Step 2: Convert to fraction form
   9,243.57/13,864.58 = 3,978.37/x
3. Step 3: Cross multiply
   9,243.57x = 13,864.58 × 3,978.37
4. Step 4: Simplify right side
   9,243.57x = 55,158,441.49
5. Step 5: Solve for x
   x = 55,158,441.49/9,243.57
6. Step 6: Final answer
   x = 5,967.22