Finding the Fourth Proportional to 23,865.30, 32,936.72 and 13,657.28

Step by Step Solution

1. Step 1: Write the proportion equation
   23,865.30 : 32,936.72 = 13,657.28 : x
2. Step 2: Convert to fraction form
   23,865.30/32,936.72 = 13,657.28/x
3. Step 3: Cross multiply
   23,865.30x = 32,936.72 × 13,657.28
4. Step 4: Simplify right side
   23,865.30x = 449,825,876.78
5. Step 5: Solve for x
   x = 449,825,876.78/23,865.30
6. Step 6: Final answer
   x = 18,848.53