Finding the Fourth Proportional to 23,681.67, 32,680.71 and 13,071.31

Step by Step Solution

1. Step 1: Write the proportion equation
   23,681.67 : 32,680.71 = 13,071.31 : x
2. Step 2: Convert to fraction form
   23,681.67/32,680.71 = 13,071.31/x
3. Step 3: Cross multiply
   23,681.67x = 32,680.71 × 13,071.31
4. Step 4: Simplify right side
   23,681.67x = 427,179,609.73
5. Step 5: Solve for x
   x = 427,179,609.73/23,681.67
6. Step 6: Final answer
   x = 18,038.41