Finding the Fourth Proportional to 23,289.59, 32,142.80 and 13,222.10

Step by Step Solution

1. Step 1: Write the proportion equation
   23,289.59 : 32,142.80 = 13,222.10 : x
2. Step 2: Convert to fraction form
   23,289.59/32,142.80 = 13,222.10/x
3. Step 3: Cross multiply
   23,289.59x = 32,142.80 × 13,222.10
4. Step 4: Simplify right side
   23,289.59x = 424,995,315.88
5. Step 5: Solve for x
   x = 424,995,315.88/23,289.59
6. Step 6: Final answer
   x = 18,248.30