Finding the Fourth Proportional to 23,867.91, 32,938.88 and 13,257.31

Step by Step Solution

1. Step 1: Write the proportion equation
   23,867.91 : 32,938.88 = 13,257.31 : x
2. Step 2: Convert to fraction form
   23,867.91/32,938.88 = 13,257.31/x
3. Step 3: Cross multiply
   23,867.91x = 32,938.88 × 13,257.31
4. Step 4: Simplify right side
   23,867.91x = 436,680,943.21
5. Step 5: Solve for x
   x = 436,680,943.21/23,867.91
6. Step 6: Final answer
   x = 18,295.73