Finding the Fourth Proportional to 21,683.10, 32,508.89 and 14,645.67

Step by Step Solution

1. Step 1: Write the proportion equation
   21,683.10 : 32,508.89 = 14,645.67 : x
2. Step 2: Convert to fraction form
   21,683.10/32,508.89 = 14,645.67/x
3. Step 3: Cross multiply
   21,683.10x = 32,508.89 × 14,645.67
4. Step 4: Simplify right side
   21,683.10x = 476,114,401.78
5. Step 5: Solve for x
   x = 476,114,401.78/21,683.10
6. Step 6: Final answer
   x = 21,957.86