Finding the Fourth Proportional to 7,016.85, 10,520.42 and 3,687.05

Step by Step Solution

1. Step 1: Write the proportion equation
   7,016.85 : 10,520.42 = 3,687.05 : x
2. Step 2: Convert to fraction form
   7,016.85/10,520.42 = 3,687.05/x
3. Step 3: Cross multiply
   7,016.85x = 10,520.42 × 3,687.05
4. Step 4: Simplify right side
   7,016.85x = 38,789,322.43
5. Step 5: Solve for x
   x = 38,789,322.43/7,016.85
6. Step 6: Final answer
   x = 5,528.03