Finding the Fourth Proportional to 236,162.37, 325,897.59 and 128,734.50

Step by Step Solution

1. Step 1: Write the proportion equation
   236,162.37 : 325,897.59 = 128,734.50 : x
2. Step 2: Convert to fraction form
   236,162.37/325,897.59 = 128,734.50/x
3. Step 3: Cross multiply
   236,162.37x = 325,897.59 × 128,734.50
4. Step 4: Simplify right side
   236,162.37x = 41,954,263,299.86
5. Step 5: Solve for x
   x = 41,954,263,299.86/236,162.37
6. Step 6: Final answer
   x = 177,650.08