Finding the Fourth Proportional to 21,160.89, 29,135.55 and 17,967.53

Step by Step Solution

1. Step 1: Write the proportion equation
   21,160.89 : 29,135.55 = 17,967.53 : x
2. Step 2: Convert to fraction form
   21,160.89/29,135.55 = 17,967.53/x
3. Step 3: Cross multiply
   21,160.89x = 29,135.55 × 17,967.53
4. Step 4: Simplify right side
   21,160.89x = 523,493,868.69
5. Step 5: Solve for x
   x = 523,493,868.69/21,160.89
6. Step 6: Final answer
   x = 24,738.75