Finding the Fourth Proportional to 9,265.55, 12,786.30 and 5,016.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,265.55 : 12,786.30 = 5,016.57 : x
2. Step 2: Convert to fraction form
   9,265.55/12,786.30 = 5,016.57/x
3. Step 3: Cross multiply
   9,265.55x = 12,786.30 × 5,016.57
4. Step 4: Simplify right side
   9,265.55x = 64,143,418.00
5. Step 5: Solve for x
   x = 64,143,418.00/9,265.55
6. Step 6: Final answer
   x = 6,922.79