Finding the Fourth Proportional to 9,066.44, 13,586.70 and 5,162.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,066.44 : 13,586.70 = 5,162.78 : x
2. Step 2: Convert to fraction form
   9,066.44/13,586.70 = 5,162.78/x
3. Step 3: Cross multiply
   9,066.44x = 13,586.70 × 5,162.78
4. Step 4: Simplify right side
   9,066.44x = 70,145,143.03
5. Step 5: Solve for x
   x = 70,145,143.03/9,066.44
6. Step 6: Final answer
   x = 7,736.79