Finding the Fourth Proportional to 495,015.37, 742,404.15 and 228,519.83

Step by Step Solution

1. Step 1: Write the proportion equation
   495,015.37 : 742,404.15 = 228,519.83 : x
2. Step 2: Convert to fraction form
   495,015.37/742,404.15 = 228,519.83/x
3. Step 3: Cross multiply
   495,015.37x = 742,404.15 × 228,519.83
4. Step 4: Simplify right side
   495,015.37x = 169,654,072,005.31
5. Step 5: Solve for x
   x = 169,654,072,005.31/495,015.37
6. Step 6: Final answer
   x = 342,724.86