Finding the Fourth Proportional to 23,540.41, 32,485.98 and 12,930.28

Step by Step Solution

1. Step 1: Write the proportion equation
   23,540.41 : 32,485.98 = 12,930.28 : x
2. Step 2: Convert to fraction form
   23,540.41/32,485.98 = 12,930.28/x
3. Step 3: Cross multiply
   23,540.41x = 32,485.98 × 12,930.28
4. Step 4: Simplify right side
   23,540.41x = 420,052,817.47
5. Step 5: Solve for x
   x = 420,052,817.47/23,540.41
6. Step 6: Final answer
   x = 17,843.90