Finding the Fourth Proportional to 82,855.94, 124,271.09 and 45,434.48

Step by Step Solution

1. Step 1: Write the proportion equation
   82,855.94 : 124,271.09 = 45,434.48 : x
2. Step 2: Convert to fraction form
   82,855.94/124,271.09 = 45,434.48/x
3. Step 3: Cross multiply
   82,855.94x = 124,271.09 × 45,434.48
4. Step 4: Simplify right side
   82,855.94x = 5,646,192,126.01
5. Step 5: Solve for x
   x = 5,646,192,126.01/82,855.94
6. Step 6: Final answer
   x = 68,144.69