Finding the Fourth Proportional to 7,011.54, 10,514.15 and 2,012.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,011.54 : 10,514.15 = 2,012.78 : x
2. Step 2: Convert to fraction form
   7,011.54/10,514.15 = 2,012.78/x
3. Step 3: Cross multiply
   7,011.54x = 10,514.15 × 2,012.78
4. Step 4: Simplify right side
   7,011.54x = 21,162,623.30
5. Step 5: Solve for x
   x = 21,162,623.30/7,011.54
6. Step 6: Final answer
   x = 3,018.26