Finding the Fourth Proportional to 20,077.34, 30,134.38 and 10,223.42

Step by Step Solution

1. Step 1: Write the proportion equation
   20,077.34 : 30,134.38 = 10,223.42 : x
2. Step 2: Convert to fraction form
   20,077.34/30,134.38 = 10,223.42/x
3. Step 3: Cross multiply
   20,077.34x = 30,134.38 × 10,223.42
4. Step 4: Simplify right side
   20,077.34x = 308,076,423.18
5. Step 5: Solve for x
   x = 308,076,423.18/20,077.34
6. Step 6: Final answer
   x = 15,344.48