Finding the Fourth Proportional to 10,955.94, 15,119.16 and 5,920.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,955.94 : 15,119.16 = 5,920.16 : x
2. Step 2: Convert to fraction form
   10,955.94/15,119.16 = 5,920.16/x
3. Step 3: Cross multiply
   10,955.94x = 15,119.16 × 5,920.16
4. Step 4: Simplify right side
   10,955.94x = 89,507,846.27
5. Step 5: Solve for x
   x = 89,507,846.27/10,955.94
6. Step 6: Final answer
   x = 8,169.80