Finding the Fourth Proportional to 274,196.76, 411,142.31 and 84,603.30

Step by Step Solution

1. Step 1: Write the proportion equation
   274,196.76 : 411,142.31 = 84,603.30 : x
2. Step 2: Convert to fraction form
   274,196.76/411,142.31 = 84,603.30/x
3. Step 3: Cross multiply
   274,196.76x = 411,142.31 × 84,603.30
4. Step 4: Simplify right side
   274,196.76x = 34,783,996,195.62
5. Step 5: Solve for x
   x = 34,783,996,195.62/274,196.76
6. Step 6: Final answer
   x = 126,857.79