Finding the Fourth Proportional to 4,930.95, 7,398.15 and 3,079.89

Step by Step Solution

1. Step 1: Write the proportion equation
   4,930.95 : 7,398.15 = 3,079.89 : x
2. Step 2: Convert to fraction form
   4,930.95/7,398.15 = 3,079.89/x
3. Step 3: Cross multiply
   4,930.95x = 7,398.15 × 3,079.89
4. Step 4: Simplify right side
   4,930.95x = 22,785,488.20
5. Step 5: Solve for x
   x = 22,785,488.20/4,930.95
6. Step 6: Final answer
   x = 4,620.91