Finding the Fourth Proportional to 7,148.29, 10,724.61 and 3,449.83

Step by Step Solution

1. Step 1: Write the proportion equation
   7,148.29 : 10,724.61 = 3,449.83 : x
2. Step 2: Convert to fraction form
   7,148.29/10,724.61 = 3,449.83/x
3. Step 3: Cross multiply
   7,148.29x = 10,724.61 × 3,449.83
4. Step 4: Simplify right side
   7,148.29x = 36,998,081.32
5. Step 5: Solve for x
   x = 36,998,081.32/7,148.29
6. Step 6: Final answer
   x = 5,175.79