Finding the Fourth Proportional to 9,292.10, 12,821.15 and 5,514.74

Step by Step Solution

1. Step 1: Write the proportion equation
   9,292.10 : 12,821.15 = 5,514.74 : x
2. Step 2: Convert to fraction form
   9,292.10/12,821.15 = 5,514.74/x
3. Step 3: Cross multiply
   9,292.10x = 12,821.15 × 5,514.74
4. Step 4: Simplify right side
   9,292.10x = 70,705,217.07
5. Step 5: Solve for x
   x = 70,705,217.07/9,292.10
6. Step 6: Final answer
   x = 7,609.18