Finding the Fourth Proportional to 7,014.06, 9,678.51 and 3,870.05

Step by Step Solution

1. Step 1: Write the proportion equation
   7,014.06 : 9,678.51 = 3,870.05 : x
2. Step 2: Convert to fraction form
   7,014.06/9,678.51 = 3,870.05/x
3. Step 3: Cross multiply
   7,014.06x = 9,678.51 × 3,870.05
4. Step 4: Simplify right side
   7,014.06x = 37,456,269.23
5. Step 5: Solve for x
   x = 37,456,269.23/7,014.06
6. Step 6: Final answer
   x = 5,340.17