Finding the Fourth Proportional to 80,523.78, 120,785.69 and 25,119.78

Step by Step Solution

1. Step 1: Write the proportion equation
   80,523.78 : 120,785.69 = 25,119.78 : x
2. Step 2: Convert to fraction form
   80,523.78/120,785.69 = 25,119.78/x
3. Step 3: Cross multiply
   80,523.78x = 120,785.69 × 25,119.78
4. Step 4: Simplify right side
   80,523.78x = 3,034,109,959.95
5. Step 5: Solve for x
   x = 3,034,109,959.95/80,523.78
6. Step 6: Final answer
   x = 37,679.68