Finding the Fourth Proportional to 9,768.45, 13,480.46 and 5,292.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,768.45 : 13,480.46 = 5,292.20 : x
2. Step 2: Convert to fraction form
   9,768.45/13,480.46 = 5,292.20/x
3. Step 3: Cross multiply
   9,768.45x = 13,480.46 × 5,292.20
4. Step 4: Simplify right side
   9,768.45x = 71,341,196.55
5. Step 5: Solve for x
   x = 71,341,196.55/9,768.45
6. Step 6: Final answer
   x = 7,303.23