Finding the Fourth Proportional to 23,871.64, 32,930.51 and 16,215.31

Step by Step Solution

1. Step 1: Write the proportion equation
   23,871.64 : 32,930.51 = 16,215.31 : x
2. Step 2: Convert to fraction form
   23,871.64/32,930.51 = 16,215.31/x
3. Step 3: Cross multiply
   23,871.64x = 32,930.51 × 16,215.31
4. Step 4: Simplify right side
   23,871.64x = 533,978,540.21
5. Step 5: Solve for x
   x = 533,978,540.21/23,871.64
6. Step 6: Final answer
   x = 22,368.74