Finding the Fourth Proportional to 76,866.82, 106,076.79 and 42,877.53

Step by Step Solution

1. Step 1: Write the proportion equation
   76,866.82 : 106,076.79 = 42,877.53 : x
2. Step 2: Convert to fraction form
   76,866.82/106,076.79 = 42,877.53/x
3. Step 3: Cross multiply
   76,866.82x = 106,076.79 × 42,877.53
4. Step 4: Simplify right side
   76,866.82x = 4,548,310,745.53
5. Step 5: Solve for x
   x = 4,548,310,745.53/76,866.82
6. Step 6: Final answer
   x = 59,171.32