Finding the Fourth Proportional to 10,853.58, 16,281.56 and 3,456.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,853.58 : 16,281.56 = 3,456.30 : x
2. Step 2: Convert to fraction form
   10,853.58/16,281.56 = 3,456.30/x
3. Step 3: Cross multiply
   10,853.58x = 16,281.56 × 3,456.30
4. Step 4: Simplify right side
   10,853.58x = 56,273,955.83
5. Step 5: Solve for x
   x = 56,273,955.83/10,853.58
6. Step 6: Final answer
   x = 5,184.83