Finding the Fourth Proportional to 23,685.42, 32,685.33 and 12,930.48

Step by Step Solution

1. Step 1: Write the proportion equation
   23,685.42 : 32,685.33 = 12,930.48 : x
2. Step 2: Convert to fraction form
   23,685.42/32,685.33 = 12,930.48/x
3. Step 3: Cross multiply
   23,685.42x = 32,685.33 × 12,930.48
4. Step 4: Simplify right side
   23,685.42x = 422,637,005.86
5. Step 5: Solve for x
   x = 422,637,005.86/23,685.42
6. Step 6: Final answer
   x = 17,843.76