Finding the Fourth Proportional to 6,111.86, 8,434.14 and 3,459.21

Step by Step Solution

1. Step 1: Write the proportion equation
   6,111.86 : 8,434.14 = 3,459.21 : x
2. Step 2: Convert to fraction form
   6,111.86/8,434.14 = 3,459.21/x
3. Step 3: Cross multiply
   6,111.86x = 8,434.14 × 3,459.21
4. Step 4: Simplify right side
   6,111.86x = 29,175,436.29
5. Step 5: Solve for x
   x = 29,175,436.29/6,111.86
6. Step 6: Final answer
   x = 4,773.58