Finding the Fourth Proportional to 242,831.27, 364,280.10 and 82,864.18

Step by Step Solution

1. Step 1: Write the proportion equation
   242,831.27 : 364,280.10 = 82,864.18 : x
2. Step 2: Convert to fraction form
   242,831.27/364,280.10 = 82,864.18/x
3. Step 3: Cross multiply
   242,831.27x = 364,280.10 × 82,864.18
4. Step 4: Simplify right side
   242,831.27x = 30,185,771,025.52
5. Step 5: Solve for x
   x = 30,185,771,025.52/242,831.27
6. Step 6: Final answer
   x = 124,307.60