Finding the Fourth Proportional to 76,766.27, 105,935.85 and 42,774.62

Step by Step Solution

1. Step 1: Write the proportion equation
   76,766.27 : 105,935.85 = 42,774.62 : x
2. Step 2: Convert to fraction form
   76,766.27/105,935.85 = 42,774.62/x
3. Step 3: Cross multiply
   76,766.27x = 105,935.85 × 42,774.62
4. Step 4: Simplify right side
   76,766.27x = 4,531,365,198.45
5. Step 5: Solve for x
   x = 4,531,365,198.45/76,766.27
6. Step 6: Final answer
   x = 59,028.08