Finding the Fourth Proportional to 6,042.69, 8,338.88 and 3,390.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,042.69 : 8,338.88 = 3,390.10 : x
2. Step 2: Convert to fraction form
   6,042.69/8,338.88 = 3,390.10/x
3. Step 3: Cross multiply
   6,042.69x = 8,338.88 × 3,390.10
4. Step 4: Simplify right side
   6,042.69x = 28,269,624.72
5. Step 5: Solve for x
   x = 28,269,624.72/6,042.69
6. Step 6: Final answer
   x = 4,678.32