Finding the Fourth Proportional to 412,958.32, 570,082.72 and 276,942.72

Step by Step Solution

1. Step 1: Write the proportion equation
   412,958.32 : 570,082.72 = 276,942.72 : x
2. Step 2: Convert to fraction form
   412,958.32/570,082.72 = 276,942.72/x
3. Step 3: Cross multiply
   412,958.32x = 570,082.72 × 276,942.72
4. Step 4: Simplify right side
   412,958.32x = 157,880,259,101.80
5. Step 5: Solve for x
   x = 157,880,259,101.80/412,958.32
6. Step 6: Final answer
   x = 382,315.24