Finding the Fourth Proportional to 9,272.96, 12,796.22 and 5,500.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,272.96 : 12,796.22 = 5,500.40 : x
2. Step 2: Convert to fraction form
   9,272.96/12,796.22 = 5,500.40/x
3. Step 3: Cross multiply
   9,272.96x = 12,796.22 × 5,500.40
4. Step 4: Simplify right side
   9,272.96x = 70,384,328.49
5. Step 5: Solve for x
   x = 70,384,328.49/9,272.96
6. Step 6: Final answer
   x = 7,590.28