Finding the Fourth Proportional to 460,086.21, 634,906.59 and 256,137.15

Step by Step Solution

1. Step 1: Write the proportion equation
   460,086.21 : 634,906.59 = 256,137.15 : x
2. Step 2: Convert to fraction form
   460,086.21/634,906.59 = 256,137.15/x
3. Step 3: Cross multiply
   460,086.21x = 634,906.59 × 256,137.15
4. Step 4: Simplify right side
   460,086.21x = 162,623,164,478.82
5. Step 5: Solve for x
   x = 162,623,164,478.82/460,086.21
6. Step 6: Final answer
   x = 353,462.37