Finding the Fourth Proportional to 23,768.16, 32,800.32 and 13,158

Step by Step Solution

1. Step 1: Write the proportion equation
   23,768.16 : 32,800.32 = 13,158 : x
2. Step 2: Convert to fraction form
   23,768.16/32,800.32 = 13,158/x
3. Step 3: Cross multiply
   23,768.16x = 32,800.32 × 13,158
4. Step 4: Simplify right side
   23,768.16x = 431,586,610.56
5. Step 5: Solve for x
   x = 431,586,610.56/23,768.16
6. Step 6: Final answer
   x = 18,158.18