Finding the Fourth Proportional to 8,267.67, 11,404.59 and 5,280.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,267.67 : 11,404.59 = 5,280.16 : x
2. Step 2: Convert to fraction form
   8,267.67/11,404.59 = 5,280.16/x
3. Step 3: Cross multiply
   8,267.67x = 11,404.59 × 5,280.16
4. Step 4: Simplify right side
   8,267.67x = 60,218,059.93
5. Step 5: Solve for x
   x = 60,218,059.93/8,267.67
6. Step 6: Final answer
   x = 7,283.56