Finding the Fourth Proportional to 105,956.98, 158,787.69 and 79,630.90

Step by Step Solution

1. Step 1: Write the proportion equation
   105,956.98 : 158,787.69 = 79,630.90 : x
2. Step 2: Convert to fraction form
   105,956.98/158,787.69 = 79,630.90/x
3. Step 3: Cross multiply
   105,956.98x = 158,787.69 × 79,630.90
4. Step 4: Simplify right side
   105,956.98x = 12,644,406,663.62
5. Step 5: Solve for x
   x = 12,644,406,663.62/105,956.98
6. Step 6: Final answer
   x = 119,335.29