Finding the Fourth Proportional to 82,854.58, 124,185.46 and 47,340.78

Step by Step Solution

1. Step 1: Write the proportion equation
   82,854.58 : 124,185.46 = 47,340.78 : x
2. Step 2: Convert to fraction form
   82,854.58/124,185.46 = 47,340.78/x
3. Step 3: Cross multiply
   82,854.58x = 124,185.46 × 47,340.78
4. Step 4: Simplify right side
   82,854.58x = 5,879,036,185.19
5. Step 5: Solve for x
   x = 5,879,036,185.19/82,854.58
6. Step 6: Final answer
   x = 70,956.08