Finding the Fourth Proportional to 236,305.89, 326,098.61 and 128,875.69

Step by Step Solution

1. Step 1: Write the proportion equation
   236,305.89 : 326,098.61 = 128,875.69 : x
2. Step 2: Convert to fraction form
   236,305.89/326,098.61 = 128,875.69/x
3. Step 3: Cross multiply
   236,305.89x = 326,098.61 × 128,875.69
4. Step 4: Simplify right side
   236,305.89x = 42,026,183,618.32
5. Step 5: Solve for x
   x = 42,026,183,618.32/236,305.89
6. Step 6: Final answer
   x = 177,846.53