Finding the Fourth Proportional to 10,665.21, 14,717.18 and 5,885.34

Step by Step Solution

1. Step 1: Write the proportion equation
   10,665.21 : 14,717.18 = 5,885.34 : x
2. Step 2: Convert to fraction form
   10,665.21/14,717.18 = 5,885.34/x
3. Step 3: Cross multiply
   10,665.21x = 14,717.18 × 5,885.34
4. Step 4: Simplify right side
   10,665.21x = 86,615,578.71
5. Step 5: Solve for x
   x = 86,615,578.71/10,665.21
6. Step 6: Final answer
   x = 8,121.32