Finding the Fourth Proportional to 115,022.42, 158,727.04 and 64,711.70

Step by Step Solution

1. Step 1: Write the proportion equation
   115,022.42 : 158,727.04 = 64,711.70 : x
2. Step 2: Convert to fraction form
   115,022.42/158,727.04 = 64,711.70/x
3. Step 3: Cross multiply
   115,022.42x = 158,727.04 × 64,711.70
4. Step 4: Simplify right side
   115,022.42x = 10,271,496,594.37
5. Step 5: Solve for x
   x = 10,271,496,594.37/115,022.42
6. Step 6: Final answer
   x = 89,299.95