Finding the Fourth Proportional to 23,327.78, 32,190.55 and 13,256.37

Step by Step Solution

1. Step 1: Write the proportion equation
   23,327.78 : 32,190.55 = 13,256.37 : x
2. Step 2: Convert to fraction form
   23,327.78/32,190.55 = 13,256.37/x
3. Step 3: Cross multiply
   23,327.78x = 32,190.55 × 13,256.37
4. Step 4: Simplify right side
   23,327.78x = 426,729,808.16
5. Step 5: Solve for x
   x = 426,729,808.16/23,327.78
6. Step 6: Final answer
   x = 18,292.78