Finding the Fourth Proportional to 3,647.94, 5,437.25 and 3,440.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,647.94 : 5,437.25 = 3,440.37 : x
2. Step 2: Convert to fraction form
   3,647.94/5,437.25 = 3,440.37/x
3. Step 3: Cross multiply
   3,647.94x = 5,437.25 × 3,440.37
4. Step 4: Simplify right side
   3,647.94x = 18,706,151.78
5. Step 5: Solve for x
   x = 18,706,151.78/3,647.94
6. Step 6: Final answer
   x = 5,127.87