Finding the Fourth Proportional to 7,012.80, 9,677.37 and 3,868.98

Step by Step Solution

1. Step 1: Write the proportion equation
   7,012.80 : 9,677.37 = 3,868.98 : x
2. Step 2: Convert to fraction form
   7,012.80/9,677.37 = 3,868.98/x
3. Step 3: Cross multiply
   7,012.80x = 9,677.37 × 3,868.98
4. Step 4: Simplify right side
   7,012.80x = 37,441,550.98
5. Step 5: Solve for x
   x = 37,441,550.98/7,012.80
6. Step 6: Final answer
   x = 5,339.03