Finding the Fourth Proportional to 9,274.17, 12,815.82 and 7,031.89

Step by Step Solution

1. Step 1: Write the proportion equation
   9,274.17 : 12,815.82 = 7,031.89 : x
2. Step 2: Convert to fraction form
   9,274.17/12,815.82 = 7,031.89/x
3. Step 3: Cross multiply
   9,274.17x = 12,815.82 × 7,031.89
4. Step 4: Simplify right side
   9,274.17x = 90,119,478.89
5. Step 5: Solve for x
   x = 90,119,478.89/9,274.17
6. Step 6: Final answer
   x = 9,717.25