Finding the Fourth Proportional to 9,290.46, 12,818.81 and 5,514.87

Step by Step Solution

1. Step 1: Write the proportion equation
   9,290.46 : 12,818.81 = 5,514.87 : x
2. Step 2: Convert to fraction form
   9,290.46/12,818.81 = 5,514.87/x
3. Step 3: Cross multiply
   9,290.46x = 12,818.81 × 5,514.87
4. Step 4: Simplify right side
   9,290.46x = 70,694,132.56
5. Step 5: Solve for x
   x = 70,694,132.56/9,290.46
6. Step 6: Final answer
   x = 7,609.32