Finding the Fourth Proportional to 16,581.40, 22,881.98 and 9,683.76

Step by Step Solution

1. Step 1: Write the proportion equation
   16,581.40 : 22,881.98 = 9,683.76 : x
2. Step 2: Convert to fraction form
   16,581.40/22,881.98 = 9,683.76/x
3. Step 3: Cross multiply
   16,581.40x = 22,881.98 × 9,683.76
4. Step 4: Simplify right side
   16,581.40x = 221,583,492.43
5. Step 5: Solve for x
   x = 221,583,492.43/16,581.40
6. Step 6: Final answer
   x = 13,363.37