Finding the Fourth Proportional to 30,725.46, 42,404.31 and 18,796.73

Step by Step Solution

1. Step 1: Write the proportion equation
   30,725.46 : 42,404.31 = 18,796.73 : x
2. Step 2: Convert to fraction form
   30,725.46/42,404.31 = 18,796.73/x
3. Step 3: Cross multiply
   30,725.46x = 42,404.31 × 18,796.73
4. Step 4: Simplify right side
   30,725.46x = 797,062,153.88
5. Step 5: Solve for x
   x = 797,062,153.88/30,725.46
6. Step 6: Final answer
   x = 25,941.42