Finding the Fourth Proportional to 23,421.42, 32,321.43 and 13,351.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,421.42 : 32,321.43 = 13,351.50 : x
2. Step 2: Convert to fraction form
   23,421.42/32,321.43 = 13,351.50/x
3. Step 3: Cross multiply
   23,421.42x = 32,321.43 × 13,351.50
4. Step 4: Simplify right side
   23,421.42x = 431,539,572.65
5. Step 5: Solve for x
   x = 431,539,572.65/23,421.42
6. Step 6: Final answer
   x = 18,425.00