Finding the Fourth Proportional to 22,492.90, 31,035.98 and 12,936.12

Step by Step Solution

1. Step 1: Write the proportion equation
   22,492.90 : 31,035.98 = 12,936.12 : x
2. Step 2: Convert to fraction form
   22,492.90/31,035.98 = 12,936.12/x
3. Step 3: Cross multiply
   22,492.90x = 31,035.98 × 12,936.12
4. Step 4: Simplify right side
   22,492.90x = 401,485,161.60
5. Step 5: Solve for x
   x = 401,485,161.60/22,492.90
6. Step 6: Final answer
   x = 17,849.42