Finding the Fourth Proportional to 22,178.50, 30,606.36 and 12,242.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,178.50 : 30,606.36 = 12,242.50 : x
2. Step 2: Convert to fraction form
   22,178.50/30,606.36 = 12,242.50/x
3. Step 3: Cross multiply
   22,178.50x = 30,606.36 × 12,242.50
4. Step 4: Simplify right side
   22,178.50x = 374,698,362.30
5. Step 5: Solve for x
   x = 374,698,362.30/22,178.50
6. Step 6: Final answer
   x = 16,894.67