Finding the Fourth Proportional to 80,554.46, 111,196.15 and 53,687.16

Step by Step Solution

1. Step 1: Write the proportion equation
   80,554.46 : 111,196.15 = 53,687.16 : x
2. Step 2: Convert to fraction form
   80,554.46/111,196.15 = 53,687.16/x
3. Step 3: Cross multiply
   80,554.46x = 111,196.15 × 53,687.16
4. Step 4: Simplify right side
   80,554.46x = 5,969,805,362.22
5. Step 5: Solve for x
   x = 5,969,805,362.22/80,554.46
6. Step 6: Final answer
   x = 74,108.94