Finding the Fourth Proportional to 82,849.37, 124,284.56 and 81,567.05

Step by Step Solution

1. Step 1: Write the proportion equation
   82,849.37 : 124,284.56 = 81,567.05 : x
2. Step 2: Convert to fraction form
   82,849.37/124,284.56 = 81,567.05/x
3. Step 3: Cross multiply
   82,849.37x = 124,284.56 × 81,567.05
4. Step 4: Simplify right side
   82,849.37x = 10,137,524,919.75
5. Step 5: Solve for x
   x = 10,137,524,919.75/82,849.37
6. Step 6: Final answer
   x = 122,360.92