Finding the Fourth Proportional to 21,539.60, 32,314.56 and 10,433.31

Step by Step Solution

1. Step 1: Write the proportion equation
   21,539.60 : 32,314.56 = 10,433.31 : x
2. Step 2: Convert to fraction form
   21,539.60/32,314.56 = 10,433.31/x
3. Step 3: Cross multiply
   21,539.60x = 32,314.56 × 10,433.31
4. Step 4: Simplify right side
   21,539.60x = 337,147,661.69
5. Step 5: Solve for x
   x = 337,147,661.69/21,539.60
6. Step 6: Final answer
   x = 15,652.46