Finding the Fourth Proportional to 4,740.57, 7,079.42 and 4,689.09

Step by Step Solution

1. Step 1: Write the proportion equation
   4,740.57 : 7,079.42 = 4,689.09 : x
2. Step 2: Convert to fraction form
   4,740.57/7,079.42 = 4,689.09/x
3. Step 3: Cross multiply
   4,740.57x = 7,079.42 × 4,689.09
4. Step 4: Simplify right side
   4,740.57x = 33,196,019.83
5. Step 5: Solve for x
   x = 33,196,019.83/4,740.57
6. Step 6: Final answer
   x = 7,002.53