Finding the Fourth Proportional to 8,532.84, 12,778.62 and 7,061.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,532.84 : 12,778.62 = 7,061.16 : x
2. Step 2: Convert to fraction form
   8,532.84/12,778.62 = 7,061.16/x
3. Step 3: Cross multiply
   8,532.84x = 12,778.62 × 7,061.16
4. Step 4: Simplify right side
   8,532.84x = 90,231,880.40
5. Step 5: Solve for x
   x = 90,231,880.40/8,532.84
6. Step 6: Final answer
   x = 10,574.66