Finding the Fourth Proportional to 460,870.14, 636,003.42 and 256,934

Step by Step Solution

1. Step 1: Write the proportion equation
   460,870.14 : 636,003.42 = 256,934 : x
2. Step 2: Convert to fraction form
   460,870.14/636,003.42 = 256,934/x
3. Step 3: Cross multiply
   460,870.14x = 636,003.42 × 256,934
4. Step 4: Simplify right side
   460,870.14x = 163,410,902,714.28
5. Step 5: Solve for x
   x = 163,410,902,714.28/460,870.14
6. Step 6: Final answer
   x = 354,570.38