Finding the Fourth Proportional to 9,031.41, 12,462.48 and 5,628.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,031.41 : 12,462.48 = 5,628.09 : x
2. Step 2: Convert to fraction form
   9,031.41/12,462.48 = 5,628.09/x
3. Step 3: Cross multiply
   9,031.41x = 12,462.48 × 5,628.09
4. Step 4: Simplify right side
   9,031.41x = 70,139,959.06
5. Step 5: Solve for x
   x = 70,139,959.06/9,031.41
6. Step 6: Final answer
   x = 7,766.22