Finding the Fourth Proportional to 13,036.80, 19,560.72 and 6,801.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,036.80 : 19,560.72 = 6,801.42 : x
2. Step 2: Convert to fraction form
   13,036.80/19,560.72 = 6,801.42/x
3. Step 3: Cross multiply
   13,036.80x = 19,560.72 × 6,801.42
4. Step 4: Simplify right side
   13,036.80x = 133,040,672.22
5. Step 5: Solve for x
   x = 133,040,672.22/13,036.80
6. Step 6: Final answer
   x = 10,205.01