Finding the Fourth Proportional to 9,240.97, 13,871.33 and 3,978.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,240.97 : 13,871.33 = 3,978.59 : x
2. Step 2: Convert to fraction form
   9,240.97/13,871.33 = 3,978.59/x
3. Step 3: Cross multiply
   9,240.97x = 13,871.33 × 3,978.59
4. Step 4: Simplify right side
   9,240.97x = 55,188,334.82
5. Step 5: Solve for x
   x = 55,188,334.82/9,240.97
6. Step 6: Final answer
   x = 5,972.14