Finding the Fourth Proportional to 6,891.72, 10,340.79 and 4,930.02

Step by Step Solution

1. Step 1: Write the proportion equation
   6,891.72 : 10,340.79 = 4,930.02 : x
2. Step 2: Convert to fraction form
   6,891.72/10,340.79 = 4,930.02/x
3. Step 3: Cross multiply
   6,891.72x = 10,340.79 × 4,930.02
4. Step 4: Simplify right side
   6,891.72x = 50,980,301.52
5. Step 5: Solve for x
   x = 50,980,301.52/6,891.72
6. Step 6: Final answer
   x = 7,397.33