Finding the Fourth Proportional to 6,111.78, 8,434.44 and 3,459.30

Step by Step Solution

1. Step 1: Write the proportion equation
   6,111.78 : 8,434.44 = 3,459.30 : x
2. Step 2: Convert to fraction form
   6,111.78/8,434.44 = 3,459.30/x
3. Step 3: Cross multiply
   6,111.78x = 8,434.44 × 3,459.30
4. Step 4: Simplify right side
   6,111.78x = 29,177,258.29
5. Step 5: Solve for x
   x = 29,177,258.29/6,111.78
6. Step 6: Final answer
   x = 4,773.94