Finding the Fourth Proportional to 231,870.69, 347,353.11 and 159,810.71

Step by Step Solution

1. Step 1: Write the proportion equation
   231,870.69 : 347,353.11 = 159,810.71 : x
2. Step 2: Convert to fraction form
   231,870.69/347,353.11 = 159,810.71/x
3. Step 3: Cross multiply
   231,870.69x = 347,353.11 × 159,810.71
4. Step 4: Simplify right side
   231,870.69x = 55,510,745,393.04
5. Step 5: Solve for x
   x = 55,510,745,393.04/231,870.69
6. Step 6: Final answer
   x = 239,403.89