Finding the Fourth Proportional to 229,665.38, 316,938.83 and 127,688.00

Step by Step Solution

1. Step 1: Write the proportion equation
   229,665.38 : 316,938.83 = 127,688.00 : x
2. Step 2: Convert to fraction form
   229,665.38/316,938.83 = 127,688.00/x
3. Step 3: Cross multiply
   229,665.38x = 316,938.83 × 127,688.00
4. Step 4: Simplify right side
   229,665.38x = 40,469,283,101.91
5. Step 5: Solve for x
   x = 40,469,283,101.91/229,665.38
6. Step 6: Final answer
   x = 176,209.77