Finding the Fourth Proportional to 231,128.49, 346,100.79 and 159,952.58

Step by Step Solution

1. Step 1: Write the proportion equation
   231,128.49 : 346,100.79 = 159,952.58 : x
2. Step 2: Convert to fraction form
   231,128.49/346,100.79 = 159,952.58/x
3. Step 3: Cross multiply
   231,128.49x = 346,100.79 × 159,952.58
4. Step 4: Simplify right side
   231,128.49x = 55,359,714,300.54
5. Step 5: Solve for x
   x = 55,359,714,300.54/231,128.49
6. Step 6: Final answer
   x = 239,519.21