Finding the Fourth Proportional to 9,219.33, 12,723.55 and 5,443.65

Step by Step Solution

1. Step 1: Write the proportion equation
   9,219.33 : 12,723.55 = 5,443.65 : x
2. Step 2: Convert to fraction form
   9,219.33/12,723.55 = 5,443.65/x
3. Step 3: Cross multiply
   9,219.33x = 12,723.55 × 5,443.65
4. Step 4: Simplify right side
   9,219.33x = 69,262,539.35
5. Step 5: Solve for x
   x = 69,262,539.35/9,219.33
6. Step 6: Final answer
   x = 7,512.75