Finding the Fourth Proportional to 7,155.50, 10,734.41 and 3,458

Step by Step Solution

1. Step 1: Write the proportion equation
   7,155.50 : 10,734.41 = 3,458 : x
2. Step 2: Convert to fraction form
   7,155.50/10,734.41 = 3,458/x
3. Step 3: Cross multiply
   7,155.50x = 10,734.41 × 3,458
4. Step 4: Simplify right side
   7,155.50x = 37,119,589.78
5. Step 5: Solve for x
   x = 37,119,589.78/7,155.50
6. Step 6: Final answer
   x = 5,187.56