Finding the Fourth Proportional to 495,478.27, 683,760.69 and 269,123.77

Step by Step Solution

1. Step 1: Write the proportion equation
   495,478.27 : 683,760.69 = 269,123.77 : x
2. Step 2: Convert to fraction form
   495,478.27/683,760.69 = 269,123.77/x
3. Step 3: Cross multiply
   495,478.27x = 683,760.69 × 269,123.77
4. Step 4: Simplify right side
   495,478.27x = 184,016,251,679.15
5. Step 5: Solve for x
   x = 184,016,251,679.15/495,478.27
6. Step 6: Final answer
   x = 371,391.17