Finding the Fourth Proportional to 451,123.94, 622,527.20 and 257,523.98

Step by Step Solution

1. Step 1: Write the proportion equation
   451,123.94 : 622,527.20 = 257,523.98 : x
2. Step 2: Convert to fraction form
   451,123.94/622,527.20 = 257,523.98/x
3. Step 3: Cross multiply
   451,123.94x = 622,527.20 × 257,523.98
4. Step 4: Simplify right side
   451,123.94x = 160,315,679,733.43
5. Step 5: Solve for x
   x = 160,315,679,733.43/451,123.94
6. Step 6: Final answer
   x = 355,369.48