Finding the Fourth Proportional to 8,303.27, 12,467.48 and 7,145.96

Step by Step Solution

1. Step 1: Write the proportion equation
   8,303.27 : 12,467.48 = 7,145.96 : x
2. Step 2: Convert to fraction form
   8,303.27/12,467.48 = 7,145.96/x
3. Step 3: Cross multiply
   8,303.27x = 12,467.48 × 7,145.96
4. Step 4: Simplify right side
   8,303.27x = 89,092,015.31
5. Step 5: Solve for x
   x = 89,092,015.31/8,303.27
6. Step 6: Final answer
   x = 10,729.76