Finding the Fourth Proportional to 9,150.81, 13,716.78 and 3,601.90

Step by Step Solution

1. Step 1: Write the proportion equation
   9,150.81 : 13,716.78 = 3,601.90 : x
2. Step 2: Convert to fraction form
   9,150.81/13,716.78 = 3,601.90/x
3. Step 3: Cross multiply
   9,150.81x = 13,716.78 × 3,601.90
4. Step 4: Simplify right side
   9,150.81x = 49,406,469.88
5. Step 5: Solve for x
   x = 49,406,469.88/9,150.81
6. Step 6: Final answer
   x = 5,399.14