Finding the Fourth Proportional to 20,434.84, 30,654.03 and 5,643.77

Step by Step Solution

1. Step 1: Write the proportion equation
   20,434.84 : 30,654.03 = 5,643.77 : x
2. Step 2: Convert to fraction form
   20,434.84/30,654.03 = 5,643.77/x
3. Step 3: Cross multiply
   20,434.84x = 30,654.03 × 5,643.77
4. Step 4: Simplify right side
   20,434.84x = 173,004,294.89
5. Step 5: Solve for x
   x = 173,004,294.89/20,434.84
6. Step 6: Final answer
   x = 8,466.14