Finding the Fourth Proportional to 619,096.32, 854,475.46 and 401,574.56

Step by Step Solution

1. Step 1: Write the proportion equation
   619,096.32 : 854,475.46 = 401,574.56 : x
2. Step 2: Convert to fraction form
   619,096.32/854,475.46 = 401,574.56/x
3. Step 3: Cross multiply
   619,096.32x = 854,475.46 × 401,574.56
4. Step 4: Simplify right side
   619,096.32x = 343,135,608,012.55
5. Step 5: Solve for x
   x = 343,135,608,012.55/619,096.32
6. Step 6: Final answer
   x = 554,252.38