Finding the Fourth Proportional to 105,665.76, 158,499.27 and 26,780.22

Step by Step Solution

1. Step 1: Write the proportion equation
   105,665.76 : 158,499.27 = 26,780.22 : x
2. Step 2: Convert to fraction form
   105,665.76/158,499.27 = 26,780.22/x
3. Step 3: Cross multiply
   105,665.76x = 158,499.27 × 26,780.22
4. Step 4: Simplify right side
   105,665.76x = 4,244,645,320.44
5. Step 5: Solve for x
   x = 4,244,645,320.44/105,665.76
6. Step 6: Final answer
   x = 40,170.49