Finding the Fourth Proportional to 470,870.64, 649,803.06 and 256,010.04

Step by Step Solution

1. Step 1: Write the proportion equation
   470,870.64 : 649,803.06 = 256,010.04 : x
2. Step 2: Convert to fraction form
   470,870.64/649,803.06 = 256,010.04/x
3. Step 3: Cross multiply
   470,870.64x = 649,803.06 × 256,010.04
4. Step 4: Simplify right side
   470,870.64x = 166,356,107,382.72
5. Step 5: Solve for x
   x = 166,356,107,382.72/470,870.64
6. Step 6: Final answer
   x = 353,294.71