Finding the Fourth Proportional to 23,685.43, 32,685.78 and 13,074.97

Step by Step Solution

1. Step 1: Write the proportion equation
   23,685.43 : 32,685.78 = 13,074.97 : x
2. Step 2: Convert to fraction form
   23,685.43/32,685.78 = 13,074.97/x
3. Step 3: Cross multiply
   23,685.43x = 32,685.78 × 13,074.97
4. Step 4: Simplify right side
   23,685.43x = 427,365,592.93
5. Step 5: Solve for x
   x = 427,365,592.93/23,685.43
6. Step 6: Final answer
   x = 18,043.40