Finding the Fourth Proportional to 105,457.61, 158,174.71 and 26,571.83

Step by Step Solution

1. Step 1: Write the proportion equation
   105,457.61 : 158,174.71 = 26,571.83 : x
2. Step 2: Convert to fraction form
   105,457.61/158,174.71 = 26,571.83/x
3. Step 3: Cross multiply
   105,457.61x = 158,174.71 × 26,571.83
4. Step 4: Simplify right side
   105,457.61x = 4,202,991,504.42
5. Step 5: Solve for x
   x = 4,202,991,504.42/105,457.61
6. Step 6: Final answer
   x = 39,854.80