Finding the Fourth Proportional to 9,049.49, 12,486.51 and 5,690.35

Step by Step Solution

1. Step 1: Write the proportion equation
   9,049.49 : 12,486.51 = 5,690.35 : x
2. Step 2: Convert to fraction form
   9,049.49/12,486.51 = 5,690.35/x
3. Step 3: Cross multiply
   9,049.49x = 12,486.51 × 5,690.35
4. Step 4: Simplify right side
   9,049.49x = 71,052,627.79
5. Step 5: Solve for x
   x = 71,052,627.79/9,049.49
6. Step 6: Final answer
   x = 7,851.56