Finding the Fourth Proportional to 10,123.28, 15,171.90 and 4,850.37

Step by Step Solution

1. Step 1: Write the proportion equation
   10,123.28 : 15,171.90 = 4,850.37 : x
2. Step 2: Convert to fraction form
   10,123.28/15,171.90 = 4,850.37/x
3. Step 3: Cross multiply
   10,123.28x = 15,171.90 × 4,850.37
4. Step 4: Simplify right side
   10,123.28x = 73,589,328.60
5. Step 5: Solve for x
   x = 73,589,328.60/10,123.28
6. Step 6: Final answer
   x = 7,269.32