Finding the Fourth Proportional to 21,214.10, 31,825.71 and 7,173.46

Step by Step Solution

1. Step 1: Write the proportion equation
   21,214.10 : 31,825.71 = 7,173.46 : x
2. Step 2: Convert to fraction form
   21,214.10/31,825.71 = 7,173.46/x
3. Step 3: Cross multiply
   21,214.10x = 31,825.71 × 7,173.46
4. Step 4: Simplify right side
   21,214.10x = 228,300,497.44
5. Step 5: Solve for x
   x = 228,300,497.44/21,214.10
6. Step 6: Final answer
   x = 10,761.73