Finding the Fourth Proportional to 21,537.54, 29,726.01 and 12,105.54

Step by Step Solution

1. Step 1: Write the proportion equation
   21,537.54 : 29,726.01 = 12,105.54 : x
2. Step 2: Convert to fraction form
   21,537.54/29,726.01 = 12,105.54/x
3. Step 3: Cross multiply
   21,537.54x = 29,726.01 × 12,105.54
4. Step 4: Simplify right side
   21,537.54x = 359,849,403.10
5. Step 5: Solve for x
   x = 359,849,403.10/21,537.54
6. Step 6: Final answer
   x = 16,708.01