Finding the Fourth Proportional to 8,066.72, 12,089.46 and 7,540.58

Step by Step Solution

1. Step 1: Write the proportion equation
   8,066.72 : 12,089.46 = 7,540.58 : x
2. Step 2: Convert to fraction form
   8,066.72/12,089.46 = 7,540.58/x
3. Step 3: Cross multiply
   8,066.72x = 12,089.46 × 7,540.58
4. Step 4: Simplify right side
   8,066.72x = 91,161,540.29
5. Step 5: Solve for x
   x = 91,161,540.29/8,066.72
6. Step 6: Final answer
   x = 11,300.94