Finding the Fourth Proportional to 22,152.26, 33,168.93 and 13,815.69

Step by Step Solution

1. Step 1: Write the proportion equation
   22,152.26 : 33,168.93 = 13,815.69 : x
2. Step 2: Convert to fraction form
   22,152.26/33,168.93 = 13,815.69/x
3. Step 3: Cross multiply
   22,152.26x = 33,168.93 × 13,815.69
4. Step 4: Simplify right side
   22,152.26x = 458,251,629.89
5. Step 5: Solve for x
   x = 458,251,629.89/22,152.26
6. Step 6: Final answer
   x = 20,686.45