Finding the Fourth Proportional to 10,515.21, 15,774.27 and 3,850.84

Step by Step Solution

1. Step 1: Write the proportion equation
   10,515.21 : 15,774.27 = 3,850.84 : x
2. Step 2: Convert to fraction form
   10,515.21/15,774.27 = 3,850.84/x
3. Step 3: Cross multiply
   10,515.21x = 15,774.27 × 3,850.84
4. Step 4: Simplify right side
   10,515.21x = 60,744,189.89
5. Step 5: Solve for x
   x = 60,744,189.89/10,515.21
6. Step 6: Final answer
   x = 5,776.79