Finding the Fourth Proportional to 9,222.34, 12,726.56 and 5,445.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,222.34 : 12,726.56 = 5,445.72 : x
2. Step 2: Convert to fraction form
   9,222.34/12,726.56 = 5,445.72/x
3. Step 3: Cross multiply
   9,222.34x = 12,726.56 × 5,445.72
4. Step 4: Simplify right side
   9,222.34x = 69,305,282.32
5. Step 5: Solve for x
   x = 69,305,282.32/9,222.34
6. Step 6: Final answer
   x = 7,514.93