Finding the Fourth Proportional to 325,498.86, 488,395.71 and 192,638.34

Step by Step Solution

1. Step 1: Write the proportion equation
   325,498.86 : 488,395.71 = 192,638.34 : x
2. Step 2: Convert to fraction form
   325,498.86/488,395.71 = 192,638.34/x
3. Step 3: Cross multiply
   325,498.86x = 488,395.71 × 192,638.34
4. Step 4: Simplify right side
   325,498.86x = 94,083,738,837.52
5. Step 5: Solve for x
   x = 94,083,738,837.52/325,498.86
6. Step 6: Final answer
   x = 289,044.76