Finding the Fourth Proportional to 105,780.88, 158,593.56 and 50,415.76

Step by Step Solution

1. Step 1: Write the proportion equation
   105,780.88 : 158,593.56 = 50,415.76 : x
2. Step 2: Convert to fraction form
   105,780.88/158,593.56 = 50,415.76/x
3. Step 3: Cross multiply
   105,780.88x = 158,593.56 × 50,415.76
4. Step 4: Simplify right side
   105,780.88x = 7,995,614,858.51
5. Step 5: Solve for x
   x = 7,995,614,858.51/105,780.88
6. Step 6: Final answer
   x = 75,586.58