Finding the Fourth Proportional to 33,087.63, 45,684.78 and 20,357.94

Step by Step Solution

1. Step 1: Write the proportion equation
   33,087.63 : 45,684.78 = 20,357.94 : x
2. Step 2: Convert to fraction form
   33,087.63/45,684.78 = 20,357.94/x
3. Step 3: Cross multiply
   33,087.63x = 45,684.78 × 20,357.94
4. Step 4: Simplify right side
   33,087.63x = 930,048,010.15
5. Step 5: Solve for x
   x = 930,048,010.15/33,087.63
6. Step 6: Final answer
   x = 28,108.63