Finding the Fourth Proportional to 10,687.65, 16,031.69 and 3,667.62

Step by Step Solution

1. Step 1: Write the proportion equation
   10,687.65 : 16,031.69 = 3,667.62 : x
2. Step 2: Convert to fraction form
   10,687.65/16,031.69 = 3,667.62/x
3. Step 3: Cross multiply
   10,687.65x = 16,031.69 × 3,667.62
4. Step 4: Simplify right side
   10,687.65x = 58,798,202.41
5. Step 5: Solve for x
   x = 58,798,202.41/10,687.65
6. Step 6: Final answer
   x = 5,501.51