Finding the Fourth Proportional to 105,761.77, 158,431.14 and 63,618.55

Step by Step Solution

1. Step 1: Write the proportion equation
   105,761.77 : 158,431.14 = 63,618.55 : x
2. Step 2: Convert to fraction form
   105,761.77/158,431.14 = 63,618.55/x
3. Step 3: Cross multiply
   105,761.77x = 158,431.14 × 63,618.55
4. Step 4: Simplify right side
   105,761.77x = 10,079,159,401.65
5. Step 5: Solve for x
   x = 10,079,159,401.65/105,761.77
6. Step 6: Final answer
   x = 95,300.59