Finding the Fourth Proportional to 9,219.92, 12,723.98 and 5,445.27

Step by Step Solution

1. Step 1: Write the proportion equation
   9,219.92 : 12,723.98 = 5,445.27 : x
2. Step 2: Convert to fraction form
   9,219.92/12,723.98 = 5,445.27/x
3. Step 3: Cross multiply
   9,219.92x = 12,723.98 × 5,445.27
4. Step 4: Simplify right side
   9,219.92x = 69,285,479.35
5. Step 5: Solve for x
   x = 69,285,479.35/9,219.92
6. Step 6: Final answer
   x = 7,514.76