Finding the Fourth Proportional to 6,111.88, 8,434.93 and 3,423.05

Step by Step Solution

1. Step 1: Write the proportion equation
   6,111.88 : 8,434.93 = 3,423.05 : x
2. Step 2: Convert to fraction form
   6,111.88/8,434.93 = 3,423.05/x
3. Step 3: Cross multiply
   6,111.88x = 8,434.93 × 3,423.05
4. Step 4: Simplify right side
   6,111.88x = 28,873,221.90
5. Step 5: Solve for x
   x = 28,873,221.90/6,111.88
6. Step 6: Final answer
   x = 4,724.12