Finding the Fourth Proportional to 9,769.45, 13,480.95 and 5,789.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,769.45 : 13,480.95 = 5,789.92 : x
2. Step 2: Convert to fraction form
   9,769.45/13,480.95 = 5,789.92/x
3. Step 3: Cross multiply
   9,769.45x = 13,480.95 × 5,789.92
4. Step 4: Simplify right side
   9,769.45x = 78,053,622.02
5. Step 5: Solve for x
   x = 78,053,622.02/9,769.45
6. Step 6: Final answer
   x = 7,989.56