Finding the Fourth Proportional to 9,236.27, 12,742.89 and 5,256.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,236.27 : 12,742.89 = 5,256.38 : x
2. Step 2: Convert to fraction form
   9,236.27/12,742.89 = 5,256.38/x
3. Step 3: Cross multiply
   9,236.27x = 12,742.89 × 5,256.38
4. Step 4: Simplify right side
   9,236.27x = 66,981,484.28
5. Step 5: Solve for x
   x = 66,981,484.28/9,236.27
6. Step 6: Final answer
   x = 7,252.01