Finding the Fourth Proportional to 33,157, 49,749.42 and 13,449.64

Step by Step Solution

1. Step 1: Write the proportion equation
   33,157 : 49,749.42 = 13,449.64 : x
2. Step 2: Convert to fraction form
   33,157/49,749.42 = 13,449.64/x
3. Step 3: Cross multiply
   33,157x = 49,749.42 × 13,449.64
4. Step 4: Simplify right side
   33,157x = 669,111,789.21
5. Step 5: Solve for x
   x = 669,111,789.21/33,157
6. Step 6: Final answer
   x = 20,180.11