Finding the Fourth Proportional to 21,885, 32,838.78 and 12,032.04

Step by Step Solution

1. Step 1: Write the proportion equation
   21,885 : 32,838.78 = 12,032.04 : x
2. Step 2: Convert to fraction form
   21,885/32,838.78 = 12,032.04/x
3. Step 3: Cross multiply
   21,885x = 32,838.78 × 12,032.04
4. Step 4: Simplify right side
   21,885x = 395,117,514.51
5. Step 5: Solve for x
   x = 395,117,514.51/21,885
6. Step 6: Final answer
   x = 18,054.26