Finding the Fourth Proportional to 21,957.34, 32,942.18 and 8,818.94

Step by Step Solution

1. Step 1: Write the proportion equation
   21,957.34 : 32,942.18 = 8,818.94 : x
2. Step 2: Convert to fraction form
   21,957.34/32,942.18 = 8,818.94/x
3. Step 3: Cross multiply
   21,957.34x = 32,942.18 × 8,818.94
4. Step 4: Simplify right side
   21,957.34x = 290,515,108.89
5. Step 5: Solve for x
   x = 290,515,108.89/21,957.34
6. Step 6: Final answer
   x = 13,230.89