Finding the Fourth Proportional to 10,628.04, 14,633.31 and 9,031.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,628.04 : 14,633.31 = 9,031.32 : x
2. Step 2: Convert to fraction form
   10,628.04/14,633.31 = 9,031.32/x
3. Step 3: Cross multiply
   10,628.04x = 14,633.31 × 9,031.32
4. Step 4: Simplify right side
   10,628.04x = 132,158,105.27
5. Step 5: Solve for x
   x = 132,158,105.27/10,628.04
6. Step 6: Final answer
   x = 12,434.85