Finding the Fourth Proportional to 242,631.30, 363,990.72 and 82,698.42

Step by Step Solution

1. Step 1: Write the proportion equation
   242,631.30 : 363,990.72 = 82,698.42 : x
2. Step 2: Convert to fraction form
   242,631.30/363,990.72 = 82,698.42/x
3. Step 3: Cross multiply
   242,631.30x = 363,990.72 × 82,698.42
4. Step 4: Simplify right side
   242,631.30x = 30,101,457,438.66
5. Step 5: Solve for x
   x = 30,101,457,438.66/242,631.30
6. Step 6: Final answer
   x = 124,062.55