Finding the Fourth Proportional to 7,012.78, 9,677.49 and 3,826.08

Step by Step Solution

1. Step 1: Write the proportion equation
   7,012.78 : 9,677.49 = 3,826.08 : x
2. Step 2: Convert to fraction form
   7,012.78/9,677.49 = 3,826.08/x
3. Step 3: Cross multiply
   7,012.78x = 9,677.49 × 3,826.08
4. Step 4: Simplify right side
   7,012.78x = 37,026,850.94
5. Step 5: Solve for x
   x = 37,026,850.94/7,012.78
6. Step 6: Final answer
   x = 5,279.91