Finding the Fourth Proportional to 82,012.12, 122,568.81 and 59,872.12

Step by Step Solution

1. Step 1: Write the proportion equation
   82,012.12 : 122,568.81 = 59,872.12 : x
2. Step 2: Convert to fraction form
   82,012.12/122,568.81 = 59,872.12/x
3. Step 3: Cross multiply
   82,012.12x = 122,568.81 × 59,872.12
4. Step 4: Simplify right side
   82,012.12x = 7,338,454,500.58
5. Step 5: Solve for x
   x = 7,338,454,500.58/82,012.12
6. Step 6: Final answer
   x = 89,480.12