Finding the Fourth Proportional to 115,016.12, 158,720.46 and 64,715.24

Step by Step Solution

1. Step 1: Write the proportion equation
   115,016.12 : 158,720.46 = 64,715.24 : x
2. Step 2: Convert to fraction form
   115,016.12/158,720.46 = 64,715.24/x
3. Step 3: Cross multiply
   115,016.12x = 158,720.46 × 64,715.24
4. Step 4: Simplify right side
   115,016.12x = 10,271,632,661.81
5. Step 5: Solve for x
   x = 10,271,632,661.81/115,016.12
6. Step 6: Final answer
   x = 89,306.03