Finding the Fourth Proportional to 367,870.38, 507,671.24 and 206,740.12

Step by Step Solution

1. Step 1: Write the proportion equation
   367,870.38 : 507,671.24 = 206,740.12 : x
2. Step 2: Convert to fraction form
   367,870.38/507,671.24 = 206,740.12/x
3. Step 3: Cross multiply
   367,870.38x = 507,671.24 × 206,740.12
4. Step 4: Simplify right side
   367,870.38x = 104,956,013,078.15
5. Step 5: Solve for x
   x = 104,956,013,078.15/367,870.38
6. Step 6: Final answer
   x = 285,307.05