Finding the Fourth Proportional to 3,771.69, 5,624.40 and 3,687.99

Step by Step Solution

1. Step 1: Write the proportion equation
   3,771.69 : 5,624.40 = 3,687.99 : x
2. Step 2: Convert to fraction form
   3,771.69/5,624.40 = 3,687.99/x
3. Step 3: Cross multiply
   3,771.69x = 5,624.40 × 3,687.99
4. Step 4: Simplify right side
   3,771.69x = 20,742,730.96
5. Step 5: Solve for x
   x = 20,742,730.96/3,771.69
6. Step 6: Final answer
   x = 5,499.59