Finding the Fourth Proportional to 80,868.50, 111,597.04 and 45,057.74

Step by Step Solution

1. Step 1: Write the proportion equation
   80,868.50 : 111,597.04 = 45,057.74 : x
2. Step 2: Convert to fraction form
   80,868.50/111,597.04 = 45,057.74/x
3. Step 3: Cross multiply
   80,868.50x = 111,597.04 × 45,057.74
4. Step 4: Simplify right side
   80,868.50x = 5,028,309,742.46
5. Step 5: Solve for x
   x = 5,028,309,742.46/80,868.50
6. Step 6: Final answer
   x = 62,178.85