Finding the Fourth Proportional to 10,912.37, 16,378.27 and 5,072.27

Step by Step Solution

1. Step 1: Write the proportion equation
   10,912.37 : 16,378.27 = 5,072.27 : x
2. Step 2: Convert to fraction form
   10,912.37/16,378.27 = 5,072.27/x
3. Step 3: Cross multiply
   10,912.37x = 16,378.27 × 5,072.27
4. Step 4: Simplify right side
   10,912.37x = 83,074,913.00
5. Step 5: Solve for x
   x = 83,074,913.00/10,912.37
6. Step 6: Final answer
   x = 7,612.92