Finding the Fourth Proportional to 218,429.97, 327,667.31 and 83,607.31

Step by Step Solution

1. Step 1: Write the proportion equation
   218,429.97 : 327,667.31 = 83,607.31 : x
2. Step 2: Convert to fraction form
   218,429.97/327,667.31 = 83,607.31/x
3. Step 3: Cross multiply
   218,429.97x = 327,667.31 × 83,607.31
4. Step 4: Simplify right side
   218,429.97x = 27,395,382,364.04
5. Step 5: Solve for x
   x = 27,395,382,364.04/218,429.97
6. Step 6: Final answer
   x = 125,419.52