Finding the Fourth Proportional to 9,107.60, 12,568.24 and 5,570.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,107.60 : 12,568.24 = 5,570.80 : x
2. Step 2: Convert to fraction form
   9,107.60/12,568.24 = 5,570.80/x
3. Step 3: Cross multiply
   9,107.60x = 12,568.24 × 5,570.80
4. Step 4: Simplify right side
   9,107.60x = 70,015,151.39
5. Step 5: Solve for x
   x = 70,015,151.39/9,107.60
6. Step 6: Final answer
   x = 7,687.55