Finding the Fourth Proportional to 105,605.28, 158,506.56 and 55,722.24

Step by Step Solution

1. Step 1: Write the proportion equation
   105,605.28 : 158,506.56 = 55,722.24 : x
2. Step 2: Convert to fraction form
   105,605.28/158,506.56 = 55,722.24/x
3. Step 3: Cross multiply
   105,605.28x = 158,506.56 × 55,722.24
4. Step 4: Simplify right side
   105,605.28x = 8,832,340,577.89
5. Step 5: Solve for x
   x = 8,832,340,577.89/105,605.28
6. Step 6: Final answer
   x = 83,635.41