Finding the Fourth Proportional to 105,849.72, 158,633.46 and 55,918.08

Step by Step Solution

1. Step 1: Write the proportion equation
   105,849.72 : 158,633.46 = 55,918.08 : x
2. Step 2: Convert to fraction form
   105,849.72/158,633.46 = 55,918.08/x
3. Step 3: Cross multiply
   105,849.72x = 158,633.46 × 55,918.08
4. Step 4: Simplify right side
   105,849.72x = 8,870,478,506.96
5. Step 5: Solve for x
   x = 8,870,478,506.96/105,849.72
6. Step 6: Final answer
   x = 83,802.57