Finding the Fourth Proportional to 10,819.07, 16,225.82 and 4,245.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,819.07 : 16,225.82 = 4,245.31 : x
2. Step 2: Convert to fraction form
   10,819.07/16,225.82 = 4,245.31/x
3. Step 3: Cross multiply
   10,819.07x = 16,225.82 × 4,245.31
4. Step 4: Simplify right side
   10,819.07x = 68,883,650.88
5. Step 5: Solve for x
   x = 68,883,650.88/10,819.07
6. Step 6: Final answer
   x = 6,366.87