Finding the Fourth Proportional to 456,424.59, 629,817.48 and 252,443.10

Step by Step Solution

1. Step 1: Write the proportion equation
   456,424.59 : 629,817.48 = 252,443.10 : x
2. Step 2: Convert to fraction form
   456,424.59/629,817.48 = 252,443.10/x
3. Step 3: Cross multiply
   456,424.59x = 629,817.48 × 252,443.10
4. Step 4: Simplify right side
   456,424.59x = 158,993,077,085.39
5. Step 5: Solve for x
   x = 158,993,077,085.39/456,424.59
6. Step 6: Final answer
   x = 348,344.68