Finding the Fourth Proportional to 9,256.73, 12,770.22 and 5,426.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,256.73 : 12,770.22 = 5,426.42 : x
2. Step 2: Convert to fraction form
   9,256.73/12,770.22 = 5,426.42/x
3. Step 3: Cross multiply
   9,256.73x = 12,770.22 × 5,426.42
4. Step 4: Simplify right side
   9,256.73x = 69,296,513.36
5. Step 5: Solve for x
   x = 69,296,513.36/9,256.73
6. Step 6: Final answer
   x = 7,486.07