Finding the Fourth Proportional to 105,810.88, 158,638.56 and 50,445.76

Step by Step Solution

1. Step 1: Write the proportion equation
   105,810.88 : 158,638.56 = 50,445.76 : x
2. Step 2: Convert to fraction form
   105,810.88/158,638.56 = 50,445.76/x
3. Step 3: Cross multiply
   105,810.88x = 158,638.56 × 50,445.76
4. Step 4: Simplify right side
   105,810.88x = 8,002,642,724.51
5. Step 5: Solve for x
   x = 8,002,642,724.51/105,810.88
6. Step 6: Final answer
   x = 75,631.57