Finding the Fourth Proportional to 23,898.86, 32,980 and 13,288.27

Step by Step Solution

1. Step 1: Write the proportion equation
   23,898.86 : 32,980 = 13,288.27 : x
2. Step 2: Convert to fraction form
   23,898.86/32,980 = 13,288.27/x
3. Step 3: Cross multiply
   23,898.86x = 32,980 × 13,288.27
4. Step 4: Simplify right side
   23,898.86x = 438,247,144.60
5. Step 5: Solve for x
   x = 438,247,144.60/23,898.86
6. Step 6: Final answer
   x = 18,337.58