Finding the Fourth Proportional to 7,012.68, 10,522.71 and 2,855.76

Step by Step Solution

1. Step 1: Write the proportion equation
   7,012.68 : 10,522.71 = 2,855.76 : x
2. Step 2: Convert to fraction form
   7,012.68/10,522.71 = 2,855.76/x
3. Step 3: Cross multiply
   7,012.68x = 10,522.71 × 2,855.76
4. Step 4: Simplify right side
   7,012.68x = 30,050,334.31
5. Step 5: Solve for x
   x = 30,050,334.31/7,012.68
6. Step 6: Final answer
   x = 4,285.14