Finding the Fourth Proportional to 42,306.78, 63,467.46 and 14,229.48

Step by Step Solution

1. Step 1: Write the proportion equation
   42,306.78 : 63,467.46 = 14,229.48 : x
2. Step 2: Convert to fraction form
   42,306.78/63,467.46 = 14,229.48/x
3. Step 3: Cross multiply
   42,306.78x = 63,467.46 × 14,229.48
4. Step 4: Simplify right side
   42,306.78x = 903,108,952.72
5. Step 5: Solve for x
   x = 903,108,952.72/42,306.78
6. Step 6: Final answer
   x = 21,346.67