Finding the Fourth Proportional to 21,838.50, 32,906.48 and 19,451.52

Step by Step Solution

1. Step 1: Write the proportion equation
   21,838.50 : 32,906.48 = 19,451.52 : x
2. Step 2: Convert to fraction form
   21,838.50/32,906.48 = 19,451.52/x
3. Step 3: Cross multiply
   21,838.50x = 32,906.48 × 19,451.52
4. Step 4: Simplify right side
   21,838.50x = 640,080,956.59
5. Step 5: Solve for x
   x = 640,080,956.59/21,838.50
6. Step 6: Final answer
   x = 29,309.75