Finding the Fourth Proportional to 22,196.70, 30,599.60 and 13,693.10

Step by Step Solution

1. Step 1: Write the proportion equation
   22,196.70 : 30,599.60 = 13,693.10 : x
2. Step 2: Convert to fraction form
   22,196.70/30,599.60 = 13,693.10/x
3. Step 3: Cross multiply
   22,196.70x = 30,599.60 × 13,693.10
4. Step 4: Simplify right side
   22,196.70x = 419,003,161.30
5. Step 5: Solve for x
   x = 419,003,161.30/22,196.70
6. Step 6: Final answer
   x = 18,876.82