Finding the Fourth Proportional to 4,623.27, 6,373.71 and 3,128.82

Step by Step Solution

1. Step 1: Write the proportion equation
   4,623.27 : 6,373.71 = 3,128.82 : x
2. Step 2: Convert to fraction form
   4,623.27/6,373.71 = 3,128.82/x
3. Step 3: Cross multiply
   4,623.27x = 6,373.71 × 3,128.82
4. Step 4: Simplify right side
   4,623.27x = 19,942,191.32
5. Step 5: Solve for x
   x = 19,942,191.32/4,623.27
6. Step 6: Final answer
   x = 4,313.44