Finding the Fourth Proportional to 11,789.15, 16,260.50 and 7,480.76

Step by Step Solution

1. Step 1: Write the proportion equation
   11,789.15 : 16,260.50 = 7,480.76 : x
2. Step 2: Convert to fraction form
   11,789.15/16,260.50 = 7,480.76/x
3. Step 3: Cross multiply
   11,789.15x = 16,260.50 × 7,480.76
4. Step 4: Simplify right side
   11,789.15x = 121,640,793.30
5. Step 5: Solve for x
   x = 121,640,793.30/11,789.15
6. Step 6: Final answer
   x = 10,318.03