Finding the Fourth Proportional to 8,007.54, 12,013.47 and 7,236.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,007.54 : 12,013.47 = 7,236.42 : x
2. Step 2: Convert to fraction form
   8,007.54/12,013.47 = 7,236.42/x
3. Step 3: Cross multiply
   8,007.54x = 12,013.47 × 7,236.42
4. Step 4: Simplify right side
   8,007.54x = 86,934,514.58
5. Step 5: Solve for x
   x = 86,934,514.58/8,007.54
6. Step 6: Final answer
   x = 10,856.58