Finding the Fourth Proportional to 23,289.50, 32,147.61 and 13,857.86

Step by Step Solution

1. Step 1: Write the proportion equation
   23,289.50 : 32,147.61 = 13,857.86 : x
2. Step 2: Convert to fraction form
   23,289.50/32,147.61 = 13,857.86/x
3. Step 3: Cross multiply
   23,289.50x = 32,147.61 × 13,857.86
4. Step 4: Simplify right side
   23,289.50x = 445,497,078.71
5. Step 5: Solve for x
   x = 445,497,078.71/23,289.50
6. Step 6: Final answer
   x = 19,128.67