Finding the Fourth Proportional to 21,456.18, 32,179.41 and 7,605.18

Step by Step Solution

1. Step 1: Write the proportion equation
   21,456.18 : 32,179.41 = 7,605.18 : x
2. Step 2: Convert to fraction form
   21,456.18/32,179.41 = 7,605.18/x
3. Step 3: Cross multiply
   21,456.18x = 32,179.41 × 7,605.18
4. Step 4: Simplify right side
   21,456.18x = 244,730,205.34
5. Step 5: Solve for x
   x = 244,730,205.34/21,456.18
6. Step 6: Final answer
   x = 11,406.05