Finding the Fourth Proportional to 21,895.56, 32,812.56 and 10,020.18

Step by Step Solution

1. Step 1: Write the proportion equation
   21,895.56 : 32,812.56 = 10,020.18 : x
2. Step 2: Convert to fraction form
   21,895.56/32,812.56 = 10,020.18/x
3. Step 3: Cross multiply
   21,895.56x = 32,812.56 × 10,020.18
4. Step 4: Simplify right side
   21,895.56x = 328,787,757.46
5. Step 5: Solve for x
   x = 328,787,757.46/21,895.56
6. Step 6: Final answer
   x = 15,016.18