Finding the Fourth Proportional to 6,139.88, 8,473.06 and 3,345.38

Step by Step Solution

1. Step 1: Write the proportion equation
   6,139.88 : 8,473.06 = 3,345.38 : x
2. Step 2: Convert to fraction form
   6,139.88/8,473.06 = 3,345.38/x
3. Step 3: Cross multiply
   6,139.88x = 8,473.06 × 3,345.38
4. Step 4: Simplify right side
   6,139.88x = 28,345,605.46
5. Step 5: Solve for x
   x = 28,345,605.46/6,139.88
6. Step 6: Final answer
   x = 4,616.64