Finding the Fourth Proportional to 10,853.84, 16,281.94 and 3,456.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,853.84 : 16,281.94 = 3,456.56 : x
2. Step 2: Convert to fraction form
   10,853.84/16,281.94 = 3,456.56/x
3. Step 3: Cross multiply
   10,853.84x = 16,281.94 × 3,456.56
4. Step 4: Simplify right side
   10,853.84x = 56,279,421.12
5. Step 5: Solve for x
   x = 56,279,421.12/10,853.84
6. Step 6: Final answer
   x = 5,185.21