Finding the Fourth Proportional to 272,189.41, 408,257.72 and 82,651.42

Step by Step Solution

1. Step 1: Write the proportion equation
   272,189.41 : 408,257.72 = 82,651.42 : x
2. Step 2: Convert to fraction form
   272,189.41/408,257.72 = 82,651.42/x
3. Step 3: Cross multiply
   272,189.41x = 408,257.72 × 82,651.42
4. Step 4: Simplify right side
   272,189.41x = 33,743,079,182.59
5. Step 5: Solve for x
   x = 33,743,079,182.59/272,189.41
6. Step 6: Final answer
   x = 123,969.11