Finding the Fourth Proportional to 7,039.46, 10,555.79 and 2,877.82

Step by Step Solution

1. Step 1: Write the proportion equation
   7,039.46 : 10,555.79 = 2,877.82 : x
2. Step 2: Convert to fraction form
   7,039.46/10,555.79 = 2,877.82/x
3. Step 3: Cross multiply
   7,039.46x = 10,555.79 × 2,877.82
4. Step 4: Simplify right side
   7,039.46x = 30,377,622.80
5. Step 5: Solve for x
   x = 30,377,622.80/7,039.46
6. Step 6: Final answer
   x = 4,315.33