Finding the Fourth Proportional to 9,271.31, 13,910.07 and 3,031.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,271.31 : 13,910.07 = 3,031.61 : x
2. Step 2: Convert to fraction form
   9,271.31/13,910.07 = 3,031.61/x
3. Step 3: Cross multiply
   9,271.31x = 13,910.07 × 3,031.61
4. Step 4: Simplify right side
   9,271.31x = 42,169,907.31
5. Step 5: Solve for x
   x = 42,169,907.31/9,271.31
6. Step 6: Final answer
   x = 4,548.43