Finding the Fourth Proportional to 408,784.89, 564,118.76 and 227,493.77

Step by Step Solution

1. Step 1: Write the proportion equation
   408,784.89 : 564,118.76 = 227,493.77 : x
2. Step 2: Convert to fraction form
   408,784.89/564,118.76 = 227,493.77/x
3. Step 3: Cross multiply
   408,784.89x = 564,118.76 × 227,493.77
4. Step 4: Simplify right side
   408,784.89x = 128,333,501,188.27
5. Step 5: Solve for x
   x = 128,333,501,188.27/408,784.89
6. Step 6: Final answer
   x = 313,938.95