Finding the Fourth Proportional to 21,350.72, 32,032.22 and 8,868.42

Step by Step Solution

1. Step 1: Write the proportion equation
   21,350.72 : 32,032.22 = 8,868.42 : x
2. Step 2: Convert to fraction form
   21,350.72/32,032.22 = 8,868.42/x
3. Step 3: Cross multiply
   21,350.72x = 32,032.22 × 8,868.42
4. Step 4: Simplify right side
   21,350.72x = 284,075,180.49
5. Step 5: Solve for x
   x = 284,075,180.49/21,350.72
6. Step 6: Final answer
   x = 13,305.18