Finding the Fourth Proportional to 9,086.82, 12,549.33 and 6,261.54

Step by Step Solution

1. Step 1: Write the proportion equation
   9,086.82 : 12,549.33 = 6,261.54 : x
2. Step 2: Convert to fraction form
   9,086.82/12,549.33 = 6,261.54/x
3. Step 3: Cross multiply
   9,086.82x = 12,549.33 × 6,261.54
4. Step 4: Simplify right side
   9,086.82x = 78,578,131.77
5. Step 5: Solve for x
   x = 78,578,131.77/9,086.82
6. Step 6: Final answer
   x = 8,647.48