Finding the Fourth Proportional to 9,086.16, 12,540.06 and 5,548.62

Step by Step Solution

1. Step 1: Write the proportion equation
   9,086.16 : 12,540.06 = 5,548.62 : x
2. Step 2: Convert to fraction form
   9,086.16/12,540.06 = 5,548.62/x
3. Step 3: Cross multiply
   9,086.16x = 12,540.06 × 5,548.62
4. Step 4: Simplify right side
   9,086.16x = 69,580,027.72
5. Step 5: Solve for x
   x = 69,580,027.72/9,086.16
6. Step 6: Final answer
   x = 7,657.80