Finding the Fourth Proportional to 8,064.72, 12,086.46 and 7,538.58

Step by Step Solution

1. Step 1: Write the proportion equation
   8,064.72 : 12,086.46 = 7,538.58 : x
2. Step 2: Convert to fraction form
   8,064.72/12,086.46 = 7,538.58/x
3. Step 3: Cross multiply
   8,064.72x = 12,086.46 × 7,538.58
4. Step 4: Simplify right side
   8,064.72x = 91,114,745.63
5. Step 5: Solve for x
   x = 91,114,745.63/8,064.72
6. Step 6: Final answer
   x = 11,297.94