Finding the Fourth Proportional to 22,665.42, 33,845.52 and 18,513.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,665.42 : 33,845.52 = 18,513.72 : x
2. Step 2: Convert to fraction form
   22,665.42/33,845.52 = 18,513.72/x
3. Step 3: Cross multiply
   22,665.42x = 33,845.52 × 18,513.72
4. Step 4: Simplify right side
   22,665.42x = 626,606,480.53
5. Step 5: Solve for x
   x = 626,606,480.53/22,665.42
6. Step 6: Final answer
   x = 27,645.92