Finding the Fourth Proportional to 21,992.50, 32,993.61 and 8,141.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,992.50 : 32,993.61 = 8,141.50 : x
2. Step 2: Convert to fraction form
   21,992.50/32,993.61 = 8,141.50/x
3. Step 3: Cross multiply
   21,992.50x = 32,993.61 × 8,141.50
4. Step 4: Simplify right side
   21,992.50x = 268,617,475.82
5. Step 5: Solve for x
   x = 268,617,475.82/21,992.50
6. Step 6: Final answer
   x = 12,214.05