Finding the Fourth Proportional to 245,499.02, 366,456.30 and 210,662.54

Step by Step Solution

1. Step 1: Write the proportion equation
   245,499.02 : 366,456.30 = 210,662.54 : x
2. Step 2: Convert to fraction form
   245,499.02/366,456.30 = 210,662.54/x
3. Step 3: Cross multiply
   245,499.02x = 366,456.30 × 210,662.54
4. Step 4: Simplify right side
   245,499.02x = 77,198,613,903.69
5. Step 5: Solve for x
   x = 77,198,613,903.69/245,499.02
6. Step 6: Final answer
   x = 314,455.89