Finding the Fourth Proportional to 451,760.08, 677,663.16 and 171,300.56

Step by Step Solution

1. Step 1: Write the proportion equation
   451,760.08 : 677,663.16 = 171,300.56 : x
2. Step 2: Convert to fraction form
   451,760.08/677,663.16 = 171,300.56/x
3. Step 3: Cross multiply
   451,760.08x = 677,663.16 × 171,300.56
4. Step 4: Simplify right side
   451,760.08x = 116,084,078,799.37
5. Step 5: Solve for x
   x = 116,084,078,799.37/451,760.08
6. Step 6: Final answer
   x = 256,959.58