Finding the Fourth Proportional to 245,992.50, 369,105.38 and 146,349.54

Step by Step Solution

1. Step 1: Write the proportion equation
   245,992.50 : 369,105.38 = 146,349.54 : x
2. Step 2: Convert to fraction form
   245,992.50/369,105.38 = 146,349.54/x
3. Step 3: Cross multiply
   245,992.50x = 369,105.38 × 146,349.54
4. Step 4: Simplify right side
   245,992.50x = 54,018,401,094.87
5. Step 5: Solve for x
   x = 54,018,401,094.87/245,992.50
6. Step 6: Final answer
   x = 219,593.70