Finding the Fourth Proportional to 273,196.72, 409,077.06 and 219,604.24

Step by Step Solution

1. Step 1: Write the proportion equation
   273,196.72 : 409,077.06 = 219,604.24 : x
2. Step 2: Convert to fraction form
   273,196.72/409,077.06 = 219,604.24/x
3. Step 3: Cross multiply
   273,196.72x = 409,077.06 × 219,604.24
4. Step 4: Simplify right side
   273,196.72x = 89,835,056,862.73
5. Step 5: Solve for x
   x = 89,835,056,862.73/273,196.72
6. Step 6: Final answer
   x = 328,829.19