Finding the Fourth Proportional to 9,150.24, 12,628.08 and 5,424.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,150.24 : 12,628.08 = 5,424.48 : x
2. Step 2: Convert to fraction form
   9,150.24/12,628.08 = 5,424.48/x
3. Step 3: Cross multiply
   9,150.24x = 12,628.08 × 5,424.48
4. Step 4: Simplify right side
   9,150.24x = 68,500,767.40
5. Step 5: Solve for x
   x = 68,500,767.40/9,150.24
6. Step 6: Final answer
   x = 7,486.23