Finding the Fourth Proportional to 105,808.75, 158,757.63 and 65,861.14

Step by Step Solution

1. Step 1: Write the proportion equation
   105,808.75 : 158,757.63 = 65,861.14 : x
2. Step 2: Convert to fraction form
   105,808.75/158,757.63 = 65,861.14/x
3. Step 3: Cross multiply
   105,808.75x = 158,757.63 × 65,861.14
4. Step 4: Simplify right side
   105,808.75x = 10,455,958,495.50
5. Step 5: Solve for x
   x = 10,455,958,495.50/105,808.75
6. Step 6: Final answer
   x = 98,819.41