Finding the Fourth Proportional to 159,418.72, 238,964.05 and 70,714

Step by Step Solution

1. Step 1: Write the proportion equation
   159,418.72 : 238,964.05 = 70,714 : x
2. Step 2: Convert to fraction form
   159,418.72/238,964.05 = 70,714/x
3. Step 3: Cross multiply
   159,418.72x = 238,964.05 × 70,714
4. Step 4: Simplify right side
   159,418.72x = 16,898,103,831.70
5. Step 5: Solve for x
   x = 16,898,103,831.70/159,418.72
6. Step 6: Final answer
   x = 105,998.24