Finding the Fourth Proportional to 86,644.37, 119,557.37 and 48,399.05

Step by Step Solution

1. Step 1: Write the proportion equation
   86,644.37 : 119,557.37 = 48,399.05 : x
2. Step 2: Convert to fraction form
   86,644.37/119,557.37 = 48,399.05/x
3. Step 3: Cross multiply
   86,644.37x = 119,557.37 × 48,399.05
4. Step 4: Simplify right side
   86,644.37x = 5,786,462,288.72
5. Step 5: Solve for x
   x = 5,786,462,288.72/86,644.37
6. Step 6: Final answer
   x = 66,784.06