Finding the Fourth Proportional to 105,448.32, 158,208.96 and 65,958.42

Step by Step Solution

1. Step 1: Write the proportion equation
   105,448.32 : 158,208.96 = 65,958.42 : x
2. Step 2: Convert to fraction form
   105,448.32/158,208.96 = 65,958.42/x
3. Step 3: Cross multiply
   105,448.32x = 158,208.96 × 65,958.42
4. Step 4: Simplify right side
   105,448.32x = 10,435,213,031.44
5. Step 5: Solve for x
   x = 10,435,213,031.44/105,448.32
6. Step 6: Final answer
   x = 98,960.45