Finding the Fourth Proportional to 10,716.62, 16,085.30 and 5,173.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,716.62 : 16,085.30 = 5,173.86 : x
2. Step 2: Convert to fraction form
   10,716.62/16,085.30 = 5,173.86/x
3. Step 3: Cross multiply
   10,716.62x = 16,085.30 × 5,173.86
4. Step 4: Simplify right side
   10,716.62x = 83,223,064.39
5. Step 5: Solve for x
   x = 83,223,064.39/10,716.62
6. Step 6: Final answer
   x = 7,765.80