Finding the Fourth Proportional to 21,415.46, 32,076.42 and 8,897.54

Step by Step Solution

1. Step 1: Write the proportion equation
   21,415.46 : 32,076.42 = 8,897.54 : x
2. Step 2: Convert to fraction form
   21,415.46/32,076.42 = 8,897.54/x
3. Step 3: Cross multiply
   21,415.46x = 32,076.42 × 8,897.54
4. Step 4: Simplify right side
   21,415.46x = 285,401,230.01
5. Step 5: Solve for x
   x = 285,401,230.01/21,415.46
6. Step 6: Final answer
   x = 13,326.88