Finding the Fourth Proportional to 22,118.10, 33,101.55 and 13,359.30

Step by Step Solution

1. Step 1: Write the proportion equation
   22,118.10 : 33,101.55 = 13,359.30 : x
2. Step 2: Convert to fraction form
   22,118.10/33,101.55 = 13,359.30/x
3. Step 3: Cross multiply
   22,118.10x = 33,101.55 × 13,359.30
4. Step 4: Simplify right side
   22,118.10x = 442,213,536.92
5. Step 5: Solve for x
   x = 442,213,536.92/22,118.10
6. Step 6: Final answer
   x = 19,993.29