Finding the Fourth Proportional to 22,420.17, 30,940.05 and 12,348.84

Step by Step Solution

1. Step 1: Write the proportion equation
   22,420.17 : 30,940.05 = 12,348.84 : x
2. Step 2: Convert to fraction form
   22,420.17/30,940.05 = 12,348.84/x
3. Step 3: Cross multiply
   22,420.17x = 30,940.05 × 12,348.84
4. Step 4: Simplify right side
   22,420.17x = 382,073,727.04
5. Step 5: Solve for x
   x = 382,073,727.04/22,420.17
6. Step 6: Final answer
   x = 17,041.52