Finding the Fourth Proportional to 23,681.63, 32,680.71 and 12,926.60

Step by Step Solution

1. Step 1: Write the proportion equation
   23,681.63 : 32,680.71 = 12,926.60 : x
2. Step 2: Convert to fraction form
   23,681.63/32,680.71 = 12,926.60/x
3. Step 3: Cross multiply
   23,681.63x = 32,680.71 × 12,926.60
4. Step 4: Simplify right side
   23,681.63x = 422,450,465.89
5. Step 5: Solve for x
   x = 422,450,465.89/23,681.63
6. Step 6: Final answer
   x = 17,838.74