Finding the Fourth Proportional to 8,906.96, 12,287.72 and 5,368.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,906.96 : 12,287.72 = 5,368.16 : x
2. Step 2: Convert to fraction form
   8,906.96/12,287.72 = 5,368.16/x
3. Step 3: Cross multiply
   8,906.96x = 12,287.72 × 5,368.16
4. Step 4: Simplify right side
   8,906.96x = 65,962,447.00
5. Step 5: Solve for x
   x = 65,962,447.00/8,906.96
6. Step 6: Final answer
   x = 7,405.72