Finding the Fourth Proportional to 383,561.89, 529,377.79 and 230,754.53

Step by Step Solution

1. Step 1: Write the proportion equation
   383,561.89 : 529,377.79 = 230,754.53 : x
2. Step 2: Convert to fraction form
   383,561.89/529,377.79 = 230,754.53/x
3. Step 3: Cross multiply
   383,561.89x = 529,377.79 × 230,754.53
4. Step 4: Simplify right side
   383,561.89x = 122,156,323,123.89
5. Step 5: Solve for x
   x = 122,156,323,123.89/383,561.89
6. Step 6: Final answer
   x = 318,478.78