Finding the Fourth Proportional to 231,948.72, 320,089.28 and 141,304.68

Step by Step Solution

1. Step 1: Write the proportion equation
   231,948.72 : 320,089.28 = 141,304.68 : x
2. Step 2: Convert to fraction form
   231,948.72/320,089.28 = 141,304.68/x
3. Step 3: Cross multiply
   231,948.72x = 320,089.28 × 141,304.68
4. Step 4: Simplify right side
   231,948.72x = 45,230,113,281.83
5. Step 5: Solve for x
   x = 45,230,113,281.83/231,948.72
6. Step 6: Final answer
   x = 195,000.49