Finding the Fourth Proportional to 105,489.18, 158,124.42 and 65,955.51

Step by Step Solution

1. Step 1: Write the proportion equation
   105,489.18 : 158,124.42 = 65,955.51 : x
2. Step 2: Convert to fraction form
   105,489.18/158,124.42 = 65,955.51/x
3. Step 3: Cross multiply
   105,489.18x = 158,124.42 × 65,955.51
4. Step 4: Simplify right side
   105,489.18x = 10,429,176,764.55
5. Step 5: Solve for x
   x = 10,429,176,764.55/105,489.18
6. Step 6: Final answer
   x = 98,864.90