Finding the Fourth Proportional to 21,024.16, 29,012.72 and 11,592.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,024.16 : 29,012.72 = 11,592.72 : x
2. Step 2: Convert to fraction form
   21,024.16/29,012.72 = 11,592.72/x
3. Step 3: Cross multiply
   21,024.16x = 29,012.72 × 11,592.72
4. Step 4: Simplify right side
   21,024.16x = 336,336,339.40
5. Step 5: Solve for x
   x = 336,336,339.40/21,024.16
6. Step 6: Final answer
   x = 15,997.61