Finding the Fourth Proportional to 7,017.56, 10,522.47 and 2,856.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,017.56 : 10,522.47 = 2,856.50 : x
2. Step 2: Convert to fraction form
   7,017.56/10,522.47 = 2,856.50/x
3. Step 3: Cross multiply
   7,017.56x = 10,522.47 × 2,856.50
4. Step 4: Simplify right side
   7,017.56x = 30,057,435.56
5. Step 5: Solve for x
   x = 30,057,435.56/7,017.56
6. Step 6: Final answer
   x = 4,283.17