Finding the Fourth Proportional to 8,792.28, 12,131.82 and 5,065.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,792.28 : 12,131.82 = 5,065.56 : x
2. Step 2: Convert to fraction form
   8,792.28/12,131.82 = 5,065.56/x
3. Step 3: Cross multiply
   8,792.28x = 12,131.82 × 5,065.56
4. Step 4: Simplify right side
   8,792.28x = 61,454,462.12
5. Step 5: Solve for x
   x = 61,454,462.12/8,792.28
6. Step 6: Final answer
   x = 6,989.59