Finding the Fourth Proportional to 80,899.49, 111,641.84 and 45,091.80

Step by Step Solution

1. Step 1: Write the proportion equation
   80,899.49 : 111,641.84 = 45,091.80 : x
2. Step 2: Convert to fraction form
   80,899.49/111,641.84 = 45,091.80/x
3. Step 3: Cross multiply
   80,899.49x = 111,641.84 × 45,091.80
4. Step 4: Simplify right side
   80,899.49x = 5,034,131,295.45
5. Step 5: Solve for x
   x = 5,034,131,295.45/80,899.49
6. Step 6: Final answer
   x = 62,226.99