Finding the Fourth Proportional to 34,118.78, 47,078.42 and 21,365.73

Step by Step Solution

1. Step 1: Write the proportion equation
   34,118.78 : 47,078.42 = 21,365.73 : x
2. Step 2: Convert to fraction form
   34,118.78/47,078.42 = 21,365.73/x
3. Step 3: Cross multiply
   34,118.78x = 47,078.42 × 21,365.73
4. Step 4: Simplify right side
   34,118.78x = 1,005,864,703.72
5. Step 5: Solve for x
   x = 1,005,864,703.72/34,118.78
6. Step 6: Final answer
   x = 29,481.27