Finding the Fourth Proportional to 80,938.02, 111,694.88 and 45,129.54

Step by Step Solution

1. Step 1: Write the proportion equation
   80,938.02 : 111,694.88 = 45,129.54 : x
2. Step 2: Convert to fraction form
   80,938.02/111,694.88 = 45,129.54/x
3. Step 3: Cross multiply
   80,938.02x = 111,694.88 × 45,129.54
4. Step 4: Simplify right side
   80,938.02x = 5,040,738,554.76
5. Step 5: Solve for x
   x = 5,040,738,554.76/80,938.02
6. Step 6: Final answer
   x = 62,279.00