Finding the Fourth Proportional to 23,190.42, 32,002.79 and 13,118.65

Step by Step Solution

1. Step 1: Write the proportion equation
   23,190.42 : 32,002.79 = 13,118.65 : x
2. Step 2: Convert to fraction form
   23,190.42/32,002.79 = 13,118.65/x
3. Step 3: Cross multiply
   23,190.42x = 32,002.79 × 13,118.65
4. Step 4: Simplify right side
   23,190.42x = 419,833,353.82
5. Step 5: Solve for x
   x = 419,833,353.82/23,190.42
6. Step 6: Final answer
   x = 18,103.74