Finding the Fourth Proportional to 9,260.30, 12,778.71 and 5,067.74

Step by Step Solution

1. Step 1: Write the proportion equation
   9,260.30 : 12,778.71 = 5,067.74 : x
2. Step 2: Convert to fraction form
   9,260.30/12,778.71 = 5,067.74/x
3. Step 3: Cross multiply
   9,260.30x = 12,778.71 × 5,067.74
4. Step 4: Simplify right side
   9,260.30x = 64,759,179.82
5. Step 5: Solve for x
   x = 64,759,179.82/9,260.30
6. Step 6: Final answer
   x = 6,993.21