Finding the Fourth Proportional to 21,571.31, 29,768.51 and 12,010.48

Step by Step Solution

1. Step 1: Write the proportion equation
   21,571.31 : 29,768.51 = 12,010.48 : x
2. Step 2: Convert to fraction form
   21,571.31/29,768.51 = 12,010.48/x
3. Step 3: Cross multiply
   21,571.31x = 29,768.51 × 12,010.48
4. Step 4: Simplify right side
   21,571.31x = 357,534,049.59
5. Step 5: Solve for x
   x = 357,534,049.59/21,571.31
6. Step 6: Final answer
   x = 16,574.52