Finding the Fourth Proportional to 9,106.74, 12,568.56 and 5,571.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,106.74 : 12,568.56 = 5,571.12 : x
2. Step 2: Convert to fraction form
   9,106.74/12,568.56 = 5,571.12/x
3. Step 3: Cross multiply
   9,106.74x = 12,568.56 × 5,571.12
4. Step 4: Simplify right side
   9,106.74x = 70,020,955.99
5. Step 5: Solve for x
   x = 70,020,955.99/9,106.74
6. Step 6: Final answer
   x = 7,688.92