Finding the Fourth Proportional to 76,847.85, 106,049.82 and 42,856.37

Step by Step Solution

1. Step 1: Write the proportion equation
   76,847.85 : 106,049.82 = 42,856.37 : x
2. Step 2: Convert to fraction form
   76,847.85/106,049.82 = 42,856.37/x
3. Step 3: Cross multiply
   76,847.85x = 106,049.82 × 42,856.37
4. Step 4: Simplify right side
   76,847.85x = 4,544,910,949.03
5. Step 5: Solve for x
   x = 4,544,910,949.03/76,847.85
6. Step 6: Final answer
   x = 59,141.68