Finding the Fourth Proportional to 9,970.92, 13,759.78 and 5,494.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,970.92 : 13,759.78 = 5,494.56 : x
2. Step 2: Convert to fraction form
   9,970.92/13,759.78 = 5,494.56/x
3. Step 3: Cross multiply
   9,970.92x = 13,759.78 × 5,494.56
4. Step 4: Simplify right side
   9,970.92x = 75,603,936.80
5. Step 5: Solve for x
   x = 75,603,936.80/9,970.92
6. Step 6: Final answer
   x = 7,582.44