Finding the Fourth Proportional to 236,978.92, 327,031.56 and 129,550.24

Step by Step Solution

1. Step 1: Write the proportion equation
   236,978.92 : 327,031.56 = 129,550.24 : x
2. Step 2: Convert to fraction form
   236,978.92/327,031.56 = 129,550.24/x
3. Step 3: Cross multiply
   236,978.92x = 327,031.56 × 129,550.24
4. Step 4: Simplify right side
   236,978.92x = 42,367,017,085.57
5. Step 5: Solve for x
   x = 42,367,017,085.57/236,978.92
6. Step 6: Final answer
   x = 178,779.69