Finding the Fourth Proportional to 8,268.72, 12,349.56 and 7,487.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,268.72 : 12,349.56 = 7,487.16 : x
2. Step 2: Convert to fraction form
   8,268.72/12,349.56 = 7,487.16/x
3. Step 3: Cross multiply
   8,268.72x = 12,349.56 × 7,487.16
4. Step 4: Simplify right side
   8,268.72x = 92,463,131.65
5. Step 5: Solve for x
   x = 92,463,131.65/8,268.72
6. Step 6: Final answer
   x = 11,182.28