Finding the Fourth Proportional to 9,287.14, 12,816.50 and 5,308.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,287.14 : 12,816.50 = 5,308.16 : x
2. Step 2: Convert to fraction form
   9,287.14/12,816.50 = 5,308.16/x
3. Step 3: Cross multiply
   9,287.14x = 12,816.50 × 5,308.16
4. Step 4: Simplify right side
   9,287.14x = 68,032,006.10
5. Step 5: Solve for x
   x = 68,032,006.10/9,287.14
6. Step 6: Final answer
   x = 7,325.40