Finding the Fourth Proportional to 268,061.38, 369,910.20 and 147,218.56

Step by Step Solution

1. Step 1: Write the proportion equation
   268,061.38 : 369,910.20 = 147,218.56 : x
2. Step 2: Convert to fraction form
   268,061.38/369,910.20 = 147,218.56/x
3. Step 3: Cross multiply
   268,061.38x = 369,910.20 × 147,218.56
4. Step 4: Simplify right side
   268,061.38x = 54,457,646,973.31
5. Step 5: Solve for x
   x = 54,457,646,973.31/268,061.38
6. Step 6: Final answer
   x = 203,153.65