Finding the Fourth Proportional to 9,213.34, 12,714.42 and 5,021.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,213.34 : 12,714.42 = 5,021.59 : x
2. Step 2: Convert to fraction form
   9,213.34/12,714.42 = 5,021.59/x
3. Step 3: Cross multiply
   9,213.34x = 12,714.42 × 5,021.59
4. Step 4: Simplify right side
   9,213.34x = 63,846,604.33
5. Step 5: Solve for x
   x = 63,846,604.33/9,213.34
6. Step 6: Final answer
   x = 6,929.80