Finding the Fourth Proportional to 9,031.92, 12,459.60 and 5,672.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,031.92 : 12,459.60 = 5,672.94 : x
2. Step 2: Convert to fraction form
   9,031.92/12,459.60 = 5,672.94/x
3. Step 3: Cross multiply
   9,031.92x = 12,459.60 × 5,672.94
4. Step 4: Simplify right side
   9,031.92x = 70,682,563.22
5. Step 5: Solve for x
   x = 70,682,563.22/9,031.92
6. Step 6: Final answer
   x = 7,825.86