Finding the Fourth Proportional to 23,719.50, 32,731.63 and 13,108.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,719.50 : 32,731.63 = 13,108.50 : x
2. Step 2: Convert to fraction form
   23,719.50/32,731.63 = 13,108.50/x
3. Step 3: Cross multiply
   23,719.50x = 32,731.63 × 13,108.50
4. Step 4: Simplify right side
   23,719.50x = 429,062,571.86
5. Step 5: Solve for x
   x = 429,062,571.86/23,719.50
6. Step 6: Final answer
   x = 18,089.02