Finding the Fourth Proportional to 10,604.50, 15,906.78 and 3,679

Step by Step Solution

1. Step 1: Write the proportion equation
   10,604.50 : 15,906.78 = 3,679 : x
2. Step 2: Convert to fraction form
   10,604.50/15,906.78 = 3,679/x
3. Step 3: Cross multiply
   10,604.50x = 15,906.78 × 3,679
4. Step 4: Simplify right side
   10,604.50x = 58,521,043.62
5. Step 5: Solve for x
   x = 58,521,043.62/10,604.50
6. Step 6: Final answer
   x = 5,518.51