Finding the Fourth Proportional to 21,444, 29,592.72 and 12,012.56

Step by Step Solution

1. Step 1: Write the proportion equation
   21,444 : 29,592.72 = 12,012.56 : x
2. Step 2: Convert to fraction form
   21,444/29,592.72 = 12,012.56/x
3. Step 3: Cross multiply
   21,444x = 29,592.72 × 12,012.56
4. Step 4: Simplify right side
   21,444x = 355,484,324.56
5. Step 5: Solve for x
   x = 355,484,324.56/21,444
6. Step 6: Final answer
   x = 16,577.33