Finding the Fourth Proportional to 30,198.55, 41,667.28 and 18,261.63

Step by Step Solution

1. Step 1: Write the proportion equation
   30,198.55 : 41,667.28 = 18,261.63 : x
2. Step 2: Convert to fraction form
   30,198.55/41,667.28 = 18,261.63/x
3. Step 3: Cross multiply
   30,198.55x = 41,667.28 × 18,261.63
4. Step 4: Simplify right side
   30,198.55x = 760,912,317.04
5. Step 5: Solve for x
   x = 760,912,317.04/30,198.55
6. Step 6: Final answer
   x = 25,196.99