Finding the Fourth Proportional to 10,161.50, 15,236.78 and 3,923.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,161.50 : 15,236.78 = 3,923.10 : x
2. Step 2: Convert to fraction form
   10,161.50/15,236.78 = 3,923.10/x
3. Step 3: Cross multiply
   10,161.50x = 15,236.78 × 3,923.10
4. Step 4: Simplify right side
   10,161.50x = 59,775,392.00
5. Step 5: Solve for x
   x = 59,775,392.00/10,161.50
6. Step 6: Final answer
   x = 5,882.54