Finding the Fourth Proportional to 354,768.84, 531,870.69 and 204,839.07

Step by Step Solution

1. Step 1: Write the proportion equation
   354,768.84 : 531,870.69 = 204,839.07 : x
2. Step 2: Convert to fraction form
   354,768.84/531,870.69 = 204,839.07/x
3. Step 3: Cross multiply
   354,768.84x = 531,870.69 × 204,839.07
4. Step 4: Simplify right side
   354,768.84x = 108,947,897,499.86
5. Step 5: Solve for x
   x = 108,947,897,499.86/354,768.84
6. Step 6: Final answer
   x = 307,095.45