Finding the Fourth Proportional to 9,015.12, 12,440.56 and 5,036.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,015.12 : 12,440.56 = 5,036.20 : x
2. Step 2: Convert to fraction form
   9,015.12/12,440.56 = 5,036.20/x
3. Step 3: Cross multiply
   9,015.12x = 12,440.56 × 5,036.20
4. Step 4: Simplify right side
   9,015.12x = 62,653,148.27
5. Step 5: Solve for x
   x = 62,653,148.27/9,015.12
6. Step 6: Final answer
   x = 6,949.79