Finding the Fourth Proportional to 8,914.24, 12,307.25 and 5,728.96

Step by Step Solution

1. Step 1: Write the proportion equation
   8,914.24 : 12,307.25 = 5,728.96 : x
2. Step 2: Convert to fraction form
   8,914.24/12,307.25 = 5,728.96/x
3. Step 3: Cross multiply
   8,914.24x = 12,307.25 × 5,728.96
4. Step 4: Simplify right side
   8,914.24x = 70,507,652.78
5. Step 5: Solve for x
   x = 70,507,652.78/8,914.24
6. Step 6: Final answer
   x = 7,909.56