Finding the Fourth Proportional to 503,328, 755,108.72 and 170,904

Step by Step Solution

1. Step 1: Write the proportion equation
   503,328 : 755,108.72 = 170,904 : x
2. Step 2: Convert to fraction form
   503,328/755,108.72 = 170,904/x
3. Step 3: Cross multiply
   503,328x = 755,108.72 × 170,904
4. Step 4: Simplify right side
   503,328x = 129,051,100,682.88
5. Step 5: Solve for x
   x = 129,051,100,682.88/503,328
6. Step 6: Final answer
   x = 256,395.63