Finding the Fourth Proportional to 80,498.76, 120,748.20 and 27,908.28

Step by Step Solution

1. Step 1: Write the proportion equation
   80,498.76 : 120,748.20 = 27,908.28 : x
2. Step 2: Convert to fraction form
   80,498.76/120,748.20 = 27,908.28/x
3. Step 3: Cross multiply
   80,498.76x = 120,748.20 × 27,908.28
4. Step 4: Simplify right side
   80,498.76x = 3,369,874,575.10
5. Step 5: Solve for x
   x = 3,369,874,575.10/80,498.76
6. Step 6: Final answer
   x = 41,862.44