Finding the Fourth Proportional to 10,853.33, 16,281.72 and 4,613.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,853.33 : 16,281.72 = 4,613.40 : x
2. Step 2: Convert to fraction form
   10,853.33/16,281.72 = 4,613.40/x
3. Step 3: Cross multiply
   10,853.33x = 16,281.72 × 4,613.40
4. Step 4: Simplify right side
   10,853.33x = 75,114,087.05
5. Step 5: Solve for x
   x = 75,114,087.05/10,853.33
6. Step 6: Final answer
   x = 6,920.84