Finding the Fourth Proportional to 7,218.36, 10,820.25 and 2,834.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,218.36 : 10,820.25 = 2,834.10 : x
2. Step 2: Convert to fraction form
   7,218.36/10,820.25 = 2,834.10/x
3. Step 3: Cross multiply
   7,218.36x = 10,820.25 × 2,834.10
4. Step 4: Simplify right side
   7,218.36x = 30,665,670.53
5. Step 5: Solve for x
   x = 30,665,670.53/7,218.36
6. Step 6: Final answer
   x = 4,248.29