Finding the Fourth Proportional to 495,870.94, 743,510.76 and 196,394.50

Step by Step Solution

1. Step 1: Write the proportion equation
   495,870.94 : 743,510.76 = 196,394.50 : x
2. Step 2: Convert to fraction form
   495,870.94/743,510.76 = 196,394.50/x
3. Step 3: Cross multiply
   495,870.94x = 743,510.76 × 196,394.50
4. Step 4: Simplify right side
   495,870.94x = 146,021,423,954.82
5. Step 5: Solve for x
   x = 146,021,423,954.82/495,870.94
6. Step 6: Final answer
   x = 294,474.65