Finding the Fourth Proportional to 7,019.76, 10,525.71 and 2,854.89

Step by Step Solution

1. Step 1: Write the proportion equation
   7,019.76 : 10,525.71 = 2,854.89 : x
2. Step 2: Convert to fraction form
   7,019.76/10,525.71 = 2,854.89/x
3. Step 3: Cross multiply
   7,019.76x = 10,525.71 × 2,854.89
4. Step 4: Simplify right side
   7,019.76x = 30,049,729.95
5. Step 5: Solve for x
   x = 30,049,729.95/7,019.76
6. Step 6: Final answer
   x = 4,280.74