Finding the Fourth Proportional to 13,396.78, 20,093.42 and 3,536.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,396.78 : 20,093.42 = 3,536.82 : x
2. Step 2: Convert to fraction form
   13,396.78/20,093.42 = 3,536.82/x
3. Step 3: Cross multiply
   13,396.78x = 20,093.42 × 3,536.82
4. Step 4: Simplify right side
   13,396.78x = 71,066,809.72
5. Step 5: Solve for x
   x = 71,066,809.72/13,396.78
6. Step 6: Final answer
   x = 5,304.77