Finding the Fourth Proportional to 10,716.81, 16,085.55 and 5,174.04

Step by Step Solution

1. Step 1: Write the proportion equation
   10,716.81 : 16,085.55 = 5,174.04 : x
2. Step 2: Convert to fraction form
   10,716.81/16,085.55 = 5,174.04/x
3. Step 3: Cross multiply
   10,716.81x = 16,085.55 × 5,174.04
4. Step 4: Simplify right side
   10,716.81x = 83,227,358.85
5. Step 5: Solve for x
   x = 83,227,358.85/10,716.81
6. Step 6: Final answer
   x = 7,766.06