Finding the Fourth Proportional to 21,369.87, 32,066.28 and 10,981.62

Step by Step Solution

1. Step 1: Write the proportion equation
   21,369.87 : 32,066.28 = 10,981.62 : x
2. Step 2: Convert to fraction form
   21,369.87/32,066.28 = 10,981.62/x
3. Step 3: Cross multiply
   21,369.87x = 32,066.28 × 10,981.62
4. Step 4: Simplify right side
   21,369.87x = 352,139,701.77
5. Step 5: Solve for x
   x = 352,139,701.77/21,369.87
6. Step 6: Final answer
   x = 16,478.33