Finding the Fourth Proportional to 14,239.56, 21,357.72 and 3,850.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,239.56 : 21,357.72 = 3,850.50 : x
2. Step 2: Convert to fraction form
   14,239.56/21,357.72 = 3,850.50/x
3. Step 3: Cross multiply
   14,239.56x = 21,357.72 × 3,850.50
4. Step 4: Simplify right side
   14,239.56x = 82,237,900.86
5. Step 5: Solve for x
   x = 82,237,900.86/14,239.56
6. Step 6: Final answer
   x = 5,775.31