Finding the Fourth Proportional to 22,964.50, 31,692.18 and 12,892.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,964.50 : 31,692.18 = 12,892.42 : x
2. Step 2: Convert to fraction form
   22,964.50/31,692.18 = 12,892.42/x
3. Step 3: Cross multiply
   22,964.50x = 31,692.18 × 12,892.42
4. Step 4: Simplify right side
   22,964.50x = 408,588,895.28
5. Step 5: Solve for x
   x = 408,588,895.28/22,964.50
6. Step 6: Final answer
   x = 17,792.20