Finding the Fourth Proportional to 9,106.84, 12,568.38 and 5,572.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,106.84 : 12,568.38 = 5,572.40 : x
2. Step 2: Convert to fraction form
   9,106.84/12,568.38 = 5,572.40/x
3. Step 3: Cross multiply
   9,106.84x = 12,568.38 × 5,572.40
4. Step 4: Simplify right side
   9,106.84x = 70,036,040.71
5. Step 5: Solve for x
   x = 70,036,040.71/9,106.84
6. Step 6: Final answer
   x = 7,690.49