Finding the Fourth Proportional to 6,774.76, 10,162.05 and 3,486.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,774.76 : 10,162.05 = 3,486.10 : x
2. Step 2: Convert to fraction form
   6,774.76/10,162.05 = 3,486.10/x
3. Step 3: Cross multiply
   6,774.76x = 10,162.05 × 3,486.10
4. Step 4: Simplify right side
   6,774.76x = 35,425,922.51
5. Step 5: Solve for x
   x = 35,425,922.51/6,774.76
6. Step 6: Final answer
   x = 5,229.10