Finding the Fourth Proportional to 23,893.89, 32,974.41 and 13,139.58

Step by Step Solution

1. Step 1: Write the proportion equation
   23,893.89 : 32,974.41 = 13,139.58 : x
2. Step 2: Convert to fraction form
   23,893.89/32,974.41 = 13,139.58/x
3. Step 3: Cross multiply
   23,893.89x = 32,974.41 × 13,139.58
4. Step 4: Simplify right side
   23,893.89x = 433,269,898.15
5. Step 5: Solve for x
   x = 433,269,898.15/23,893.89
6. Step 6: Final answer
   x = 18,133.08