Finding the Fourth Proportional to 4,738.72, 7,109.04 and 3,106.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,738.72 : 7,109.04 = 3,106.72 : x
2. Step 2: Convert to fraction form
   4,738.72/7,109.04 = 3,106.72/x
3. Step 3: Cross multiply
   4,738.72x = 7,109.04 × 3,106.72
4. Step 4: Simplify right side
   4,738.72x = 22,085,796.75
5. Step 5: Solve for x
   x = 22,085,796.75/4,738.72
6. Step 6: Final answer
   x = 4,660.71