Finding the Fourth Proportional to 33,168.86, 45,776.67 and 20,419.47

Step by Step Solution

1. Step 1: Write the proportion equation
   33,168.86 : 45,776.67 = 20,419.47 : x
2. Step 2: Convert to fraction form
   33,168.86/45,776.67 = 20,419.47/x
3. Step 3: Cross multiply
   33,168.86x = 45,776.67 × 20,419.47
4. Step 4: Simplify right side
   33,168.86x = 934,735,339.76
5. Step 5: Solve for x
   x = 934,735,339.76/33,168.86
6. Step 6: Final answer
   x = 28,181.12