Finding the Fourth Proportional to 105,496.43, 158,135.30 and 65,962.76

Step by Step Solution

1. Step 1: Write the proportion equation
   105,496.43 : 158,135.30 = 65,962.76 : x
2. Step 2: Convert to fraction form
   105,496.43/158,135.30 = 65,962.76/x
3. Step 3: Cross multiply
   105,496.43x = 158,135.30 × 65,962.76
4. Step 4: Simplify right side
   105,496.43x = 10,431,040,511.61
5. Step 5: Solve for x
   x = 10,431,040,511.61/105,496.43
6. Step 6: Final answer
   x = 98,875.77