Finding the Fourth Proportional to 9,259.52, 12,778.46 and 5,067.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,259.52 : 12,778.46 = 5,067.80 : x
2. Step 2: Convert to fraction form
   9,259.52/12,778.46 = 5,067.80/x
3. Step 3: Cross multiply
   9,259.52x = 12,778.46 × 5,067.80
4. Step 4: Simplify right side
   9,259.52x = 64,758,679.59
5. Step 5: Solve for x
   x = 64,758,679.59/9,259.52
6. Step 6: Final answer
   x = 6,993.74