Finding the Fourth Proportional to 274,696.38, 379,085.27 and 158,345.64

Step by Step Solution

1. Step 1: Write the proportion equation
   274,696.38 : 379,085.27 = 158,345.64 : x
2. Step 2: Convert to fraction form
   274,696.38/379,085.27 = 158,345.64/x
3. Step 3: Cross multiply
   274,696.38x = 379,085.27 × 158,345.64
4. Step 4: Simplify right side
   274,696.38x = 60,026,499,692.72
5. Step 5: Solve for x
   x = 60,026,499,692.72/274,696.38
6. Step 6: Final answer
   x = 218,519.44