Finding the Fourth Proportional to 10,672.75, 16,010.34 and 5,479.84

Step by Step Solution

1. Step 1: Write the proportion equation
   10,672.75 : 16,010.34 = 5,479.84 : x
2. Step 2: Convert to fraction form
   10,672.75/16,010.34 = 5,479.84/x
3. Step 3: Cross multiply
   10,672.75x = 16,010.34 × 5,479.84
4. Step 4: Simplify right side
   10,672.75x = 87,734,101.55
5. Step 5: Solve for x
   x = 87,734,101.55/10,672.75
6. Step 6: Final answer
   x = 8,220.38