Finding the Fourth Proportional to 105,776.42, 158,630.60 and 55,827.77

Step by Step Solution

1. Step 1: Write the proportion equation
   105,776.42 : 158,630.60 = 55,827.77 : x
2. Step 2: Convert to fraction form
   105,776.42/158,630.60 = 55,827.77/x
3. Step 3: Cross multiply
   105,776.42x = 158,630.60 × 55,827.77
4. Step 4: Simplify right side
   105,776.42x = 8,855,991,998.18
5. Step 5: Solve for x
   x = 8,855,991,998.18/105,776.42
6. Step 6: Final answer
   x = 83,723.69