Finding the Fourth Proportional to 105,928.56, 158,890.41 and 53,323.92

Step by Step Solution

1. Step 1: Write the proportion equation
   105,928.56 : 158,890.41 = 53,323.92 : x
2. Step 2: Convert to fraction form
   105,928.56/158,890.41 = 53,323.92/x
3. Step 3: Cross multiply
   105,928.56x = 158,890.41 × 53,323.92
4. Step 4: Simplify right side
   105,928.56x = 8,472,659,511.61
5. Step 5: Solve for x
   x = 8,472,659,511.61/105,928.56
6. Step 6: Final answer
   x = 79,984.66