Finding the Fourth Proportional to 86,757.12, 119,721.60 and 49,030.56

Step by Step Solution

1. Step 1: Write the proportion equation
   86,757.12 : 119,721.60 = 49,030.56 : x
2. Step 2: Convert to fraction form
   86,757.12/119,721.60 = 49,030.56/x
3. Step 3: Cross multiply
   86,757.12x = 119,721.60 × 49,030.56
4. Step 4: Simplify right side
   86,757.12x = 5,870,017,092.10
5. Step 5: Solve for x
   x = 5,870,017,092.10/86,757.12
6. Step 6: Final answer
   x = 67,660.35