Finding the Fourth Proportional to 242,407.06, 363,679.71 and 82,518.10

Step by Step Solution

1. Step 1: Write the proportion equation
   242,407.06 : 363,679.71 = 82,518.10 : x
2. Step 2: Convert to fraction form
   242,407.06/363,679.71 = 82,518.10/x
3. Step 3: Cross multiply
   242,407.06x = 363,679.71 × 82,518.10
4. Step 4: Simplify right side
   242,407.06x = 30,010,158,677.75
5. Step 5: Solve for x
   x = 30,010,158,677.75/242,407.06
6. Step 6: Final answer
   x = 123,800.68