Finding the Fourth Proportional to 32,768.12, 49,155.33 and 13,042.05

Step by Step Solution

1. Step 1: Write the proportion equation
   32,768.12 : 49,155.33 = 13,042.05 : x
2. Step 2: Convert to fraction form
   32,768.12/49,155.33 = 13,042.05/x
3. Step 3: Cross multiply
   32,768.12x = 49,155.33 × 13,042.05
4. Step 4: Simplify right side
   32,768.12x = 641,086,271.63
5. Step 5: Solve for x
   x = 641,086,271.63/32,768.12
6. Step 6: Final answer
   x = 19,564.33