Finding the Fourth Proportional to 7,013.53, 9,678.45 and 3,826.89

Step by Step Solution

1. Step 1: Write the proportion equation
   7,013.53 : 9,678.45 = 3,826.89 : x
2. Step 2: Convert to fraction form
   7,013.53/9,678.45 = 3,826.89/x
3. Step 3: Cross multiply
   7,013.53x = 9,678.45 × 3,826.89
4. Step 4: Simplify right side
   7,013.53x = 37,038,363.52
5. Step 5: Solve for x
   x = 37,038,363.52/7,013.53
6. Step 6: Final answer
   x = 5,280.99