Finding the Fourth Proportional to 10,869.42, 16,302.78 and 3,078.84

Step by Step Solution

1. Step 1: Write the proportion equation
   10,869.42 : 16,302.78 = 3,078.84 : x
2. Step 2: Convert to fraction form
   10,869.42/16,302.78 = 3,078.84/x
3. Step 3: Cross multiply
   10,869.42x = 16,302.78 × 3,078.84
4. Step 4: Simplify right side
   10,869.42x = 50,193,651.18
5. Step 5: Solve for x
   x = 50,193,651.18/10,869.42
6. Step 6: Final answer
   x = 4,617.88