Finding the Fourth Proportional to 242,485.83, 363,729.47 and 84,714.30

Step by Step Solution

1. Step 1: Write the proportion equation
   242,485.83 : 363,729.47 = 84,714.30 : x
2. Step 2: Convert to fraction form
   242,485.83/363,729.47 = 84,714.30/x
3. Step 3: Cross multiply
   242,485.83x = 363,729.47 × 84,714.30
4. Step 4: Simplify right side
   242,485.83x = 30,813,087,016.85
5. Step 5: Solve for x
   x = 30,813,087,016.85/242,485.83
6. Step 6: Final answer
   x = 127,071.70