Finding the Fourth Proportional to 4,801.50, 7,172.94 and 3,828.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,801.50 : 7,172.94 = 3,828.72 : x
2. Step 2: Convert to fraction form
   4,801.50/7,172.94 = 3,828.72/x
3. Step 3: Cross multiply
   4,801.50x = 7,172.94 × 3,828.72
4. Step 4: Simplify right side
   4,801.50x = 27,463,178.84
5. Step 5: Solve for x
   x = 27,463,178.84/4,801.50
6. Step 6: Final answer
   x = 5,719.71