Finding the Fourth Proportional to 456,022.72, 629,298.48 and 254,818.72

Step by Step Solution

1. Step 1: Write the proportion equation
   456,022.72 : 629,298.48 = 254,818.72 : x
2. Step 2: Convert to fraction form
   456,022.72/629,298.48 = 254,818.72/x
3. Step 3: Cross multiply
   456,022.72x = 629,298.48 × 254,818.72
4. Step 4: Simplify right side
   456,022.72x = 160,357,033,171.55
5. Step 5: Solve for x
   x = 160,357,033,171.55/456,022.72
6. Step 6: Final answer
   x = 351,642.64