Finding the Fourth Proportional to 33,106.89, 45,697.39 and 21,785.12

Step by Step Solution

1. Step 1: Write the proportion equation
   33,106.89 : 45,697.39 = 21,785.12 : x
2. Step 2: Convert to fraction form
   33,106.89/45,697.39 = 21,785.12/x
3. Step 3: Cross multiply
   33,106.89x = 45,697.39 × 21,785.12
4. Step 4: Simplify right side
   33,106.89x = 995,523,013.25
5. Step 5: Solve for x
   x = 995,523,013.25/33,106.89
6. Step 6: Final answer
   x = 30,069.96