Finding the Fourth Proportional to 383,499.50, 529,231.93 and 213,744.56

Step by Step Solution

1. Step 1: Write the proportion equation
   383,499.50 : 529,231.93 = 213,744.56 : x
2. Step 2: Convert to fraction form
   383,499.50/529,231.93 = 213,744.56/x
3. Step 3: Cross multiply
   383,499.50x = 529,231.93 × 213,744.56
4. Step 4: Simplify right side
   383,499.50x = 113,120,442,835.28
5. Step 5: Solve for x
   x = 113,120,442,835.28/383,499.50
6. Step 6: Final answer
   x = 294,968.95