Finding the Fourth Proportional to 80,892.52, 111,599.31 and 49,049.80

Step by Step Solution

1. Step 1: Write the proportion equation
   80,892.52 : 111,599.31 = 49,049.80 : x
2. Step 2: Convert to fraction form
   80,892.52/111,599.31 = 49,049.80/x
3. Step 3: Cross multiply
   80,892.52x = 111,599.31 × 49,049.80
4. Step 4: Simplify right side
   80,892.52x = 5,473,923,835.64
5. Step 5: Solve for x
   x = 5,473,923,835.64/80,892.52
6. Step 6: Final answer
   x = 67,669.10