Finding the Fourth Proportional to 20,233.12, 30,300.42 and 13,976.44

Step by Step Solution

1. Step 1: Write the proportion equation
   20,233.12 : 30,300.42 = 13,976.44 : x
2. Step 2: Convert to fraction form
   20,233.12/30,300.42 = 13,976.44/x
3. Step 3: Cross multiply
   20,233.12x = 30,300.42 × 13,976.44
4. Step 4: Simplify right side
   20,233.12x = 423,492,002.10
5. Step 5: Solve for x
   x = 423,492,002.10/20,233.12
6. Step 6: Final answer
   x = 20,930.63