Finding the Fourth Proportional to 21,176.01, 31,765.59 and 7,136.10

Step by Step Solution

1. Step 1: Write the proportion equation
   21,176.01 : 31,765.59 = 7,136.10 : x
2. Step 2: Convert to fraction form
   21,176.01/31,765.59 = 7,136.10/x
3. Step 3: Cross multiply
   21,176.01x = 31,765.59 × 7,136.10
4. Step 4: Simplify right side
   21,176.01x = 226,682,426.80
5. Step 5: Solve for x
   x = 226,682,426.80/21,176.01
6. Step 6: Final answer
   x = 10,704.68