Finding the Fourth Proportional to 7,283.67, 10,916.37 and 3,118.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,283.67 : 10,916.37 = 3,118.78 : x
2. Step 2: Convert to fraction form
   7,283.67/10,916.37 = 3,118.78/x
3. Step 3: Cross multiply
   7,283.67x = 10,916.37 × 3,118.78
4. Step 4: Simplify right side
   7,283.67x = 34,045,756.43
5. Step 5: Solve for x
   x = 34,045,756.43/7,283.67
6. Step 6: Final answer
   x = 4,674.26