Finding the Fourth Proportional to 21,942.96, 32,910.12 and 8,088.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,942.96 : 32,910.12 = 8,088.72 : x
2. Step 2: Convert to fraction form
   21,942.96/32,910.12 = 8,088.72/x
3. Step 3: Cross multiply
   21,942.96x = 32,910.12 × 8,088.72
4. Step 4: Simplify right side
   21,942.96x = 266,200,745.85
5. Step 5: Solve for x
   x = 266,200,745.85/21,942.96
6. Step 6: Final answer
   x = 12,131.49