Finding the Fourth Proportional to 105,928.16, 158,744.62 and 79,602.15

Step by Step Solution

1. Step 1: Write the proportion equation
   105,928.16 : 158,744.62 = 79,602.15 : x
2. Step 2: Convert to fraction form
   105,928.16/158,744.62 = 79,602.15/x
3. Step 3: Cross multiply
   105,928.16x = 158,744.62 × 79,602.15
4. Step 4: Simplify right side
   105,928.16x = 12,636,412,853.93
5. Step 5: Solve for x
   x = 12,636,412,853.93/105,928.16
6. Step 6: Final answer
   x = 119,292.29