Finding the Fourth Proportional to 7,018.56, 10,518.51 and 3,724.56

Step by Step Solution

1. Step 1: Write the proportion equation
   7,018.56 : 10,518.51 = 3,724.56 : x
2. Step 2: Convert to fraction form
   7,018.56/10,518.51 = 3,724.56/x
3. Step 3: Cross multiply
   7,018.56x = 10,518.51 × 3,724.56
4. Step 4: Simplify right side
   7,018.56x = 39,176,821.61
5. Step 5: Solve for x
   x = 39,176,821.61/7,018.56
6. Step 6: Final answer
   x = 5,581.89