Finding the Fourth Proportional to 80,900.76, 111,646.84 and 45,091

Step by Step Solution

1. Step 1: Write the proportion equation
   80,900.76 : 111,646.84 = 45,091 : x
2. Step 2: Convert to fraction form
   80,900.76/111,646.84 = 45,091/x
3. Step 3: Cross multiply
   80,900.76x = 111,646.84 × 45,091
4. Step 4: Simplify right side
   80,900.76x = 5,034,267,662.44
5. Step 5: Solve for x
   x = 5,034,267,662.44/80,900.76
6. Step 6: Final answer
   x = 62,227.69