Finding the Fourth Proportional to 115,952.52, 160,016.49 and 64,964.91

Step by Step Solution

1. Step 1: Write the proportion equation
   115,952.52 : 160,016.49 = 64,964.91 : x
2. Step 2: Convert to fraction form
   115,952.52/160,016.49 = 64,964.91/x
3. Step 3: Cross multiply
   115,952.52x = 160,016.49 × 64,964.91
4. Step 4: Simplify right side
   115,952.52x = 10,395,456,871.37
5. Step 5: Solve for x
   x = 10,395,456,871.37/115,952.52
6. Step 6: Final answer
   x = 89,652.70