Finding the Fourth Proportional to 30,796.59, 42,488.88 and 25,121.48

Step by Step Solution

1. Step 1: Write the proportion equation
   30,796.59 : 42,488.88 = 25,121.48 : x
2. Step 2: Convert to fraction form
   30,796.59/42,488.88 = 25,121.48/x
3. Step 3: Cross multiply
   30,796.59x = 42,488.88 × 25,121.48
4. Step 4: Simplify right side
   30,796.59x = 1,067,383,336.70
5. Step 5: Solve for x
   x = 1,067,383,336.70/30,796.59
6. Step 6: Final answer
   x = 34,659.14