Finding the Fourth Proportional to 105,501.75, 158,291.51 and 55,579.83

Step by Step Solution

1. Step 1: Write the proportion equation
   105,501.75 : 158,291.51 = 55,579.83 : x
2. Step 2: Convert to fraction form
   105,501.75/158,291.51 = 55,579.83/x
3. Step 3: Cross multiply
   105,501.75x = 158,291.51 × 55,579.83
4. Step 4: Simplify right side
   105,501.75x = 8,797,814,938.34
5. Step 5: Solve for x
   x = 8,797,814,938.34/105,501.75
6. Step 6: Final answer
   x = 83,390.23