Finding the Fourth Proportional to 105,834.10, 158,795.58 and 65,886.49

Step by Step Solution

1. Step 1: Write the proportion equation
   105,834.10 : 158,795.58 = 65,886.49 : x
2. Step 2: Convert to fraction form
   105,834.10/158,795.58 = 65,886.49/x
3. Step 3: Cross multiply
   105,834.10x = 158,795.58 × 65,886.49
4. Step 4: Simplify right side
   105,834.10x = 10,462,483,064.28
5. Step 5: Solve for x
   x = 10,462,483,064.28/105,834.10
6. Step 6: Final answer
   x = 98,857.39