Finding the Fourth Proportional to 23,900.09, 32,981.94 and 13,289.63

Step by Step Solution

1. Step 1: Write the proportion equation
   23,900.09 : 32,981.94 = 13,289.63 : x
2. Step 2: Convert to fraction form
   23,900.09/32,981.94 = 13,289.63/x
3. Step 3: Cross multiply
   23,900.09x = 32,981.94 × 13,289.63
4. Step 4: Simplify right side
   23,900.09x = 438,317,614.37
5. Step 5: Solve for x
   x = 438,317,614.37/23,900.09
6. Step 6: Final answer
   x = 18,339.58