Finding the Fourth Proportional to 8,528.82, 12,792.42 and 5,196.18

Step by Step Solution

1. Step 1: Write the proportion equation
   8,528.82 : 12,792.42 = 5,196.18 : x
2. Step 2: Convert to fraction form
   8,528.82/12,792.42 = 5,196.18/x
3. Step 3: Cross multiply
   8,528.82x = 12,792.42 × 5,196.18
4. Step 4: Simplify right side
   8,528.82x = 66,471,716.96
5. Step 5: Solve for x
   x = 66,471,716.96/8,528.82
6. Step 6: Final answer
   x = 7,793.78