Finding the Fourth Proportional to 23,778.37, 32,811.50 and 13,165.34

Step by Step Solution

1. Step 1: Write the proportion equation
   23,778.37 : 32,811.50 = 13,165.34 : x
2. Step 2: Convert to fraction form
   23,778.37/32,811.50 = 13,165.34/x
3. Step 3: Cross multiply
   23,778.37x = 32,811.50 × 13,165.34
4. Step 4: Simplify right side
   23,778.37x = 431,974,487.58
5. Step 5: Solve for x
   x = 431,974,487.58/23,778.37
6. Step 6: Final answer
   x = 18,166.70