Finding the Fourth Proportional to 9,222.81, 12,724.47 and 5,444.70

Step by Step Solution

1. Step 1: Write the proportion equation
   9,222.81 : 12,724.47 = 5,444.70 : x
2. Step 2: Convert to fraction form
   9,222.81/12,724.47 = 5,444.70/x
3. Step 3: Cross multiply
   9,222.81x = 12,724.47 × 5,444.70
4. Step 4: Simplify right side
   9,222.81x = 69,280,921.81
5. Step 5: Solve for x
   x = 69,280,921.81/9,222.81
6. Step 6: Final answer
   x = 7,511.91