Finding the Fourth Proportional to 105,840, 158,681.92 and 50,474.88

Step by Step Solution

1. Step 1: Write the proportion equation
   105,840 : 158,681.92 = 50,474.88 : x
2. Step 2: Convert to fraction form
   105,840/158,681.92 = 50,474.88/x
3. Step 3: Cross multiply
   105,840x = 158,681.92 × 50,474.88
4. Step 4: Simplify right side
   105,840x = 8,009,450,870.17
5. Step 5: Solve for x
   x = 8,009,450,870.17/105,840
6. Step 6: Final answer
   x = 75,675.08