Finding the Fourth Proportional to 9,768.84, 13,480.19 and 5,520.27

Step by Step Solution

1. Step 1: Write the proportion equation
   9,768.84 : 13,480.19 = 5,520.27 : x
2. Step 2: Convert to fraction form
   9,768.84/13,480.19 = 5,520.27/x
3. Step 3: Cross multiply
   9,768.84x = 13,480.19 × 5,520.27
4. Step 4: Simplify right side
   9,768.84x = 74,414,288.45
5. Step 5: Solve for x
   x = 74,414,288.45/9,768.84
6. Step 6: Final answer
   x = 7,617.52