Finding the Fourth Proportional to 105,803.88, 158,628.06 and 50,438.76

Step by Step Solution

1. Step 1: Write the proportion equation
   105,803.88 : 158,628.06 = 50,438.76 : x
2. Step 2: Convert to fraction form
   105,803.88/158,628.06 = 50,438.76/x
3. Step 3: Cross multiply
   105,803.88x = 158,628.06 × 50,438.76
4. Step 4: Simplify right side
   105,803.88x = 8,001,002,647.61
5. Step 5: Solve for x
   x = 8,001,002,647.61/105,803.88
6. Step 6: Final answer
   x = 75,621.07