Finding the Fourth Proportional to 23,838.72, 32,897.45 and 13,228.35

Step by Step Solution

1. Step 1: Write the proportion equation
   23,838.72 : 32,897.45 = 13,228.35 : x
2. Step 2: Convert to fraction form
   23,838.72/32,897.45 = 13,228.35/x
3. Step 3: Cross multiply
   23,838.72x = 32,897.45 × 13,228.35
4. Step 4: Simplify right side
   23,838.72x = 435,179,015.78
5. Step 5: Solve for x
   x = 435,179,015.78/23,838.72
6. Step 6: Final answer
   x = 18,255.13