Finding the Fourth Proportional to 6,111.90, 8,434.26 and 3,459.42

Step by Step Solution

1. Step 1: Write the proportion equation
   6,111.90 : 8,434.26 = 3,459.42 : x
2. Step 2: Convert to fraction form
   6,111.90/8,434.26 = 3,459.42/x
3. Step 3: Cross multiply
   6,111.90x = 8,434.26 × 3,459.42
4. Step 4: Simplify right side
   6,111.90x = 29,177,647.73
5. Step 5: Solve for x
   x = 29,177,647.73/6,111.90
6. Step 6: Final answer
   x = 4,773.91