Finding the Fourth Proportional to 236,105.89, 325,826.55 and 128,675.86

Step by Step Solution

1. Step 1: Write the proportion equation
   236,105.89 : 325,826.55 = 128,675.86 : x
2. Step 2: Convert to fraction form
   236,105.89/325,826.55 = 128,675.86/x
3. Step 3: Cross multiply
   236,105.89x = 325,826.55 × 128,675.86
4. Step 4: Simplify right side
   236,105.89x = 41,926,010,717.52
5. Step 5: Solve for x
   x = 41,926,010,717.52/236,105.89
6. Step 6: Final answer
   x = 177,572.92