Finding the Fourth Proportional to 20,405.94, 30,603.87 and 5,614.14

Step by Step Solution

1. Step 1: Write the proportion equation
   20,405.94 : 30,603.87 = 5,614.14 : x
2. Step 2: Convert to fraction form
   20,405.94/30,603.87 = 5,614.14/x
3. Step 3: Cross multiply
   20,405.94x = 30,603.87 × 5,614.14
4. Step 4: Simplify right side
   20,405.94x = 171,814,410.72
5. Step 5: Solve for x
   x = 171,814,410.72/20,405.94
6. Step 6: Final answer
   x = 8,419.82