Finding the Fourth Proportional to 9,112.24, 12,573.37 and 5,078.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,112.24 : 12,573.37 = 5,078.18 : x
2. Step 2: Convert to fraction form
   9,112.24/12,573.37 = 5,078.18/x
3. Step 3: Cross multiply
   9,112.24x = 12,573.37 × 5,078.18
4. Step 4: Simplify right side
   9,112.24x = 63,849,856.56
5. Step 5: Solve for x
   x = 63,849,856.56/9,112.24
6. Step 6: Final answer
   x = 7,007.04