Finding the Fourth Proportional to 82,856.94, 124,272.58 and 45,435.48

Step by Step Solution

1. Step 1: Write the proportion equation
   82,856.94 : 124,272.58 = 45,435.48 : x
2. Step 2: Convert to fraction form
   82,856.94/124,272.58 = 45,435.48/x
3. Step 3: Cross multiply
   82,856.94x = 124,272.58 × 45,435.48
4. Step 4: Simplify right side
   82,856.94x = 5,646,384,323.14
5. Step 5: Solve for x
   x = 5,646,384,323.14/82,856.94
6. Step 6: Final answer
   x = 68,146.18