Finding the Fourth Proportional to 9,280.80, 12,801.87 and 5,502.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,280.80 : 12,801.87 = 5,502.96 : x
2. Step 2: Convert to fraction form
   9,280.80/12,801.87 = 5,502.96/x
3. Step 3: Cross multiply
   9,280.80x = 12,801.87 × 5,502.96
4. Step 4: Simplify right side
   9,280.80x = 70,448,178.54
5. Step 5: Solve for x
   x = 70,448,178.54/9,280.80
6. Step 6: Final answer
   x = 7,590.74