Finding the Fourth Proportional to 10,719.45, 16,083.72 and 4,480.70

Step by Step Solution

1. Step 1: Write the proportion equation
   10,719.45 : 16,083.72 = 4,480.70 : x
2. Step 2: Convert to fraction form
   10,719.45/16,083.72 = 4,480.70/x
3. Step 3: Cross multiply
   10,719.45x = 16,083.72 × 4,480.70
4. Step 4: Simplify right side
   10,719.45x = 72,066,243.79
5. Step 5: Solve for x
   x = 72,066,243.79/10,719.45
6. Step 6: Final answer
   x = 6,722.94