Finding the Fourth Proportional to 467,328.72, 644,912.88 and 266,124.72

Step by Step Solution

1. Step 1: Write the proportion equation
   467,328.72 : 644,912.88 = 266,124.72 : x
2. Step 2: Convert to fraction form
   467,328.72/644,912.88 = 266,124.72/x
3. Step 3: Cross multiply
   467,328.72x = 644,912.88 × 266,124.72
4. Step 4: Simplify right side
   467,328.72x = 171,627,259,614.39
5. Step 5: Solve for x
   x = 171,627,259,614.39/467,328.72
6. Step 6: Final answer
   x = 367,251.68