Finding the Fourth Proportional to 231,708.23, 347,429.13 and 123,504.31

Step by Step Solution

1. Step 1: Write the proportion equation
   231,708.23 : 347,429.13 = 123,504.31 : x
2. Step 2: Convert to fraction form
   231,708.23/347,429.13 = 123,504.31/x
3. Step 3: Cross multiply
   231,708.23x = 347,429.13 × 123,504.31
4. Step 4: Simplify right side
   231,708.23x = 42,908,994,974.55
5. Step 5: Solve for x
   x = 42,908,994,974.55/231,708.23
6. Step 6: Final answer
   x = 185,185.46