Finding the Fourth Proportional to 21,622.76, 32,438.54 and 9,142.82

Step by Step Solution

1. Step 1: Write the proportion equation
   21,622.76 : 32,438.54 = 9,142.82 : x
2. Step 2: Convert to fraction form
   21,622.76/32,438.54 = 9,142.82/x
3. Step 3: Cross multiply
   21,622.76x = 32,438.54 × 9,142.82
4. Step 4: Simplify right side
   21,622.76x = 296,579,732.28
5. Step 5: Solve for x
   x = 296,579,732.28/21,622.76
6. Step 6: Final answer
   x = 13,716.09