Finding the Fourth Proportional to 13,940.85, 19,238.31 and 7,567.47

Step by Step Solution

1. Step 1: Write the proportion equation
   13,940.85 : 19,238.31 = 7,567.47 : x
2. Step 2: Convert to fraction form
   13,940.85/19,238.31 = 7,567.47/x
3. Step 3: Cross multiply
   13,940.85x = 19,238.31 × 7,567.47
4. Step 4: Simplify right side
   13,940.85x = 145,585,333.78
5. Step 5: Solve for x
   x = 145,585,333.78/13,940.85
6. Step 6: Final answer
   x = 10,443.07