Finding the Fourth Proportional to 7,017.32, 10,524.84 and 2,857.16

Step by Step Solution

1. Step 1: Write the proportion equation
   7,017.32 : 10,524.84 = 2,857.16 : x
2. Step 2: Convert to fraction form
   7,017.32/10,524.84 = 2,857.16/x
3. Step 3: Cross multiply
   7,017.32x = 10,524.84 × 2,857.16
4. Step 4: Simplify right side
   7,017.32x = 30,071,099.23
5. Step 5: Solve for x
   x = 30,071,099.23/7,017.32
6. Step 6: Final answer
   x = 4,285.27