Finding the Fourth Proportional to 21,314.40, 31,968.72 and 5,732.96

Step by Step Solution

1. Step 1: Write the proportion equation
   21,314.40 : 31,968.72 = 5,732.96 : x
2. Step 2: Convert to fraction form
   21,314.40/31,968.72 = 5,732.96/x
3. Step 3: Cross multiply
   21,314.40x = 31,968.72 × 5,732.96
4. Step 4: Simplify right side
   21,314.40x = 183,275,393.01
5. Step 5: Solve for x
   x = 183,275,393.01/21,314.40
6. Step 6: Final answer
   x = 8,598.67