Finding the Fourth Proportional to 8,856.72, 13,282.56 and 3,012

Step by Step Solution

1. Step 1: Write the proportion equation
   8,856.72 : 13,282.56 = 3,012 : x
2. Step 2: Convert to fraction form
   8,856.72/13,282.56 = 3,012/x
3. Step 3: Cross multiply
   8,856.72x = 13,282.56 × 3,012
4. Step 4: Simplify right side
   8,856.72x = 40,007,070.72
5. Step 5: Solve for x
   x = 40,007,070.72/8,856.72
6. Step 6: Final answer
   x = 4,517.14