Finding the Fourth Proportional to 279,013.38, 418,388.82 and 194,868.56

Step by Step Solution

1. Step 1: Write the proportion equation
   279,013.38 : 418,388.82 = 194,868.56 : x
2. Step 2: Convert to fraction form
   279,013.38/418,388.82 = 194,868.56/x
3. Step 3: Cross multiply
   279,013.38x = 418,388.82 × 194,868.56
4. Step 4: Simplify right side
   279,013.38x = 81,530,826,873.50
5. Step 5: Solve for x
   x = 81,530,826,873.50/279,013.38
6. Step 6: Final answer
   x = 292,211.17