Finding the Fourth Proportional to 456,144, 629,498.16 and 254,940

Step by Step Solution

1. Step 1: Write the proportion equation
   456,144 : 629,498.16 = 254,940 : x
2. Step 2: Convert to fraction form
   456,144/629,498.16 = 254,940/x
3. Step 3: Cross multiply
   456,144x = 629,498.16 × 254,940
4. Step 4: Simplify right side
   456,144x = 160,484,260,910.40
5. Step 5: Solve for x
   x = 160,484,260,910.40/456,144
6. Step 6: Final answer
   x = 351,828.07