Finding the Fourth Proportional to 105,812.88, 158,641.56 and 50,447.76

Step by Step Solution

1. Step 1: Write the proportion equation
   105,812.88 : 158,641.56 = 50,447.76 : x
2. Step 2: Convert to fraction form
   105,812.88/158,641.56 = 50,447.76/x
3. Step 3: Cross multiply
   105,812.88x = 158,641.56 × 50,447.76
4. Step 4: Simplify right side
   105,812.88x = 8,003,111,344.91
5. Step 5: Solve for x
   x = 8,003,111,344.91/105,812.88
6. Step 6: Final answer
   x = 75,634.57