Finding the Fourth Proportional to 3,012.72, 4,158.71 and 2,929.49

Step by Step Solution

1. Step 1: Write the proportion equation
   3,012.72 : 4,158.71 = 2,929.49 : x
2. Step 2: Convert to fraction form
   3,012.72/4,158.71 = 2,929.49/x
3. Step 3: Cross multiply
   3,012.72x = 4,158.71 × 2,929.49
4. Step 4: Simplify right side
   3,012.72x = 12,182,906.68
5. Step 5: Solve for x
   x = 12,182,906.68/3,012.72
6. Step 6: Final answer
   x = 4,043.83