Finding the Fourth Proportional to 21,585.83, 29,789.01 and 12,633.48

Step by Step Solution

1. Step 1: Write the proportion equation
   21,585.83 : 29,789.01 = 12,633.48 : x
2. Step 2: Convert to fraction form
   21,585.83/29,789.01 = 12,633.48/x
3. Step 3: Cross multiply
   21,585.83x = 29,789.01 × 12,633.48
4. Step 4: Simplify right side
   21,585.83x = 376,338,862.05
5. Step 5: Solve for x
   x = 376,338,862.05/21,585.83
6. Step 6: Final answer
   x = 17,434.54